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单选题
Passage1Lonely people, it seems, are at greater risk than the gregarious of developing illnesses associated with chronic inflammation, such as heart disease and certain cancers.A paper published last year in the Public Library of Science, Medicine, shows the effect on mortality of loneliness is comparable with that of smoking and drinking after examining the results of 148 previous studies and controlled for factors such as age and pre-existing illness.Steven Cole of the University of Califormia, Los Angeles, thinks he may know why this is so.He told the American Association for the Advancement of Science meeting in Washington,D.C., about his work studying the expression of genes in lonely people. Dr. Cole harvested samples of white blood cells from both lonely and gregarious people. He then analysed the activity of their genes, as measured by the production of a substance called messenger RNA. This molecule carries instructions from the genes telling a cell which proteins to make. The level of messenger RNA from most genes was the same in both types of people. There were several dozen genes, however, that were less active in the lonely, and several dozen others that were more active. Moreover, both the less active and the more active gene types came from a small number of functional groups.Broadly speaking, the genes less active in the lonely were those involved in staving off viral infections. Those that were more active were involved in protecting against bacteria. Dr. Cole suspects this could help explain not only why the lonely are iller, but how, in evolutionary terms, this odd state of affairs has come about.The crucial bit of the puzzle is that viruses have to be caught from another infected individual and they are usually species-specific. Bacteria, in contrast, often just lurk in the environment, and may thrive on many hosts. The gregarious are therefore at greater risk than the lonely of catching viruses, and Dr. Cole thus suggests that past evolution has created a mechanism which causes white cells to respond appropriately. Conversely, the lonely are better off ramping up their protection against bacterial infection, which is a bigger relative risk to them.What Dr. Cole seems to have revealed, then, is a mechanism by which social environment reaches inside a person's body and tweaks its genome so that it responds appropriately. It is not that the lonely and the gregarious are genetically different from each other. Rather, their genes are regulated differently, according to how sociable an individual is. Dr. Cole thinks this regulation is part of a wider mechanism that tunes individuals to the circumstances they find themselves in.What can we know about viruses and bacteria from the fourth paragraph?
A
Viruses often remain hidden in the environment.
B
Bacteria are passed to other people by the infected individual.
C
The lonely people can catch viruses more easily.
D
Viruses pose a greater threat to the gregarious than bacteria.
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解析：
更多 “单选题Passage1Lonely people, it seems, are at greater risk than the gregarious of developing illnesses associated with chronic inflammation, such as heart disease and certain cancers.A paper published last year in the Public Library of Science, Medicine, shows the effect on mortality of loneliness is comparable with that of smoking and drinking after examining the results of 148 previous studies and controlled for factors such as age and pre-existing illness.Steven Cole of the University of Califormia, Los Angeles, thinks he may know why this is so.He told the American Association for the Advancement of Science meeting in Washington,D.C., about his work studying the expression of genes in lonely people. Dr. Cole harvested samples of white blood cells from both lonely and gregarious people. He then analysed the activity of their genes, as measured by the production of a substance called messenger RNA. This molecule carries instructions from the genes telling a cell which proteins to make. The level of messenger RNA from most genes was the same in both types of people. There were several dozen genes, however, that were less active in the lonely, and several dozen others that were more active. Moreover, both the less active and the more active gene types came from a small number of functional groups.Broadly speaking, the genes less active in the lonely were those involved in staving off viral infections. Those that were more active were involved in protecting against bacteria. Dr. Cole suspects this could help explain not only why the lonely are iller, but how, in evolutionary terms, this odd state of affairs has come about.The crucial bit of the puzzle is that viruses have to be caught from another infected individual and they are usually species-specific. Bacteria, in contrast, often just lurk in the environment, and may thrive on many hosts. The gregarious are therefore at greater risk than the lonely of catching viruses, and Dr. Cole thus suggests that past evolution has created a mechanism which causes white cells to respond appropriately. Conversely, the lonely are better off ramping up their protection against bacterial infection, which is a bigger relative risk to them.What Dr. Cole seems to have revealed, then, is a mechanism by which social environment reaches inside a person's body and tweaks its genome so that it responds appropriately. It is not that the lonely and the gregarious are genetically different from each other. Rather, their genes are regulated differently, according to how sociable an individual is. Dr. Cole thinks this regulation is part of a wider mechanism that tunes individuals to the circumstances they find themselves in.What can we know about viruses and bacteria from the fourth paragraph?A Viruses often remain hidden in the environment.B Bacteria are passed to other people by the infected individual.C The lonely people can catch viruses more easily.D Viruses pose a greater threat to the gregarious than bacteria.” 相关考题
考题
As a carer you are less at risk from injury caused by manual handling than people in any other occupation.()
此题为判断题(对，错)。
考题
60 It seems ridiculous to the writer that_______________.A. people dive 300 metres into the seaB. expensive clothes sell better than cheap onesC. cheap cars don’t run as fast as expensive onesD. expensive watches with unnecessary functions still sell
考题
There is no ( ) who lays down his life for his friends.
A、greater love than that of a manB、greater love than a man'sC、greater love than a manD、as greater love as a man
考题
The value of the collateral must be ______.A．greater than the loan amountB．the same as or be greater than the loan amountC．smaller than the loan amountD．the same as the loan amount
考题
Today a student knows that__________A．his knowledge is often incorrectB．he cannot learn more than the students in the 19th century didC．those who come after him will have greater difficulties in learningD．his knowledge is very limited compared with the total amount
考题
The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually______.A.greater than the average exhaust manifold pressureB.less than the average exhaust manifold pressureC.greater at the turbine wheel than at the impellerD.greater at reduced engine speed
考题
A semisubmersible which flops between forward and aft angles of trim is likely to have ______.A.KML less than KGLB.an off-center LCGC.LCG greater than LCBD.KML greater than KMT
考题
A celestial body will cross the prime vertical circle when the latitude is numerically ______.A.greater than the declination and both are of the same nameB.less than the declination and both are of the same nameC.greater than the declination and both are of contrary nameD.less than the declination and both are of contrary name
考题
Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways. The simple reason for this is that there are more different ways of looking at things present in the first kind of society. There are more ideas, more disagreements in interest, and more groups and organizations with different beliefs. In addition, there is usually a greater worldly interest and greater tolerance in mixed societies. All these factors tend to protnote social change by opening more areas of life to decision.
In a society where people are quite similar in many ways, there are fewer occasions for people to see the need or the opportunity for change because everything seems to be the same. And although conditions may not be satisfactory, they are at least customary and undisputed.
Within a society, social changes is also likely to occur more frequently and more readily in the material aspects of the culture than in the non-material, for example, in technology rather than in values; in what has been learned later in life rather than what was learned early; in the less basic and less emotional aspects of society than in their opposites; in the simple elements rather than in the complex ones; in form rather than in substance; and in elements that are acceptable to the culture rather than in strange elements.
Furthermore, social change is easier if it is gradual. For example, it comes more readily in human relations on a continuous scale rather than one with sharp difference. This is one reason why change has not come more quickly to Black Americans as compared to other American minorities,because of the sharp difference in appearance between them and their white counterparts.
One of the factors that tend to promote social change is__________.A.joint interest
B.different points of view
C.less emotional people
D.advanced technology
考题
Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways. The simple reason for this is that there are more different ways of looking at things present in the first kind of society. There are more ideas, more disagreements in interest, and more groups and organizations with different beliefs. In addition, there is usually a greater worldly interest and greater tolerance in mixed societies. All these factors tend to protnote social change by opening more areas of life to decision.
In a society where people are quite similar in many ways, there are fewer occasions for people to see the need or the opportunity for change because everything seems to be the same. And although conditions may not be satisfactory, they are at least customary and undisputed.
Within a society, social changes is also likely to occur more frequently and more readily in the material aspects of the culture than in the non-material, for example, in technology rather than in values; in what has been learned later in life rather than what was learned early; in the less basic and less emotional aspects of society than in their opposites; in the simple elements rather than in the complex ones; in form rather than in substance; and in elements that are acceptable to the culture rather than in strange elements.
Furthermore, social change is easier if it is gradual. For example, it comes more readily in human relations on a continuous scale rather than one with sharp difference. This is one reason why change has not come more quickly to Black Americans as compared to other American minorities,because of the sharp difference in appearance between them and their white counterparts.
?The expression "greater tolerance" (Para. 1) refers to__________.A.greater willingness to accept social change
B.quicker adaptation to changing circumstances
C.more respect for different beliefs and behavior
D.greater readiness to agree to different opinions and ideas
考题
Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways. The simple reason for this is that there are more different ways of looking at things present in the first kind of society. There are more ideas, more disagreements in interest, and more groups and organizations with different beliefs. In addition, there is usually a greater worldly interest and greater tolerance in mixed societies. All these factors tend to protnote social change by opening more areas of life to decision.
In a society where people are quite similar in many ways, there are fewer occasions for people to see the need or the opportunity for change because everything seems to be the same. And although conditions may not be satisfactory, they are at least customary and undisputed.
Within a society, social changes is also likely to occur more frequently and more readily in the material aspects of the culture than in the non-material, for example, in technology rather than in values; in what has been learned later in life rather than what was learned early; in the less basic and less emotional aspects of society than in their opposites; in the simple elements rather than in the complex ones; in form rather than in substance; and in elements that are acceptable to the culture rather than in strange elements.
Furthermore, social change is easier if it is gradual. For example, it comes more readily in human relations on a continuous scale rather than one with sharp difference. This is one reason why change has not come more quickly to Black Americans as compared to other American minorities,because of the sharp difference in appearance between them and their white counterparts.
?Social change is less likely to occur in a society where people are quite similar in many ways because__________.A.people there have got so accustomed to their conditions that they seldom think it necessary to change
B.people there have identical needs that can be satisfied without much difficulty
C.people there are easy to please
D.people there are less disputed
考题
Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways. The simple reason for this is that there are more different ways of looking at things present in the first kind of society. There are more ideas, more disagreements in interest, and more groups and organizations with different beliefs. In addition, there is usually a greater worldly interest and greater tolerance in mixed societies. All these factors tend to protnote social change by opening more areas of life to decision.
In a society where people are quite similar in many ways, there are fewer occasions for people to see the need or the opportunity for change because everything seems to be the same. And although conditions may not be satisfactory, they are at least customary and undisputed.
Within a society, social changes is also likely to occur more frequently and more readily in the material aspects of the culture than in the non-material, for example, in technology rather than in values; in what has been learned later in life rather than what was learned early; in the less basic and less emotional aspects of society than in their opposites; in the simple elements rather than in the complex ones; in form rather than in substance; and in elements that are acceptable to the culture rather than in strange elements.
Furthermore, social change is easier if it is gradual. For example, it comes more readily in human relations on a continuous scale rather than one with sharp difference. This is one reason why change has not come more quickly to Black Americans as compared to other American minorities,because of the sharp difference in appearance between them and their white counterparts.
According to the passage, which of the following is NOT true?A.Social change tends to meet with more difficulty in basic and emotional aspects of society.
B.Disagreement with and argument about conditions tend to slow down social change.
C.Social change is more likely to occur in the material aspect of society.
D.Social change is less likely to occur in what people learned when they were young.
考题
Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways. The simple reason for this is that there are more different ways of looking at things present in the first kind of society. There are more ideas, more disagreements in interest, and more groups and organizations with different beliefs. In addition, there is usually a greater worldly interest and greater tolerance in mixed societies. All these factors tend to protnote social change by opening more areas of life to decision.
In a society where people are quite similar in many ways, there are fewer occasions for people to see the need or the opportunity for change because everything seems to be the same. And although conditions may not be satisfactory, they are at least customary and undisputed.
Within a society, social changes is also likely to occur more frequently and more readily in the material aspects of the culture than in the non-material, for example, in technology rather than in values; in what has been learned later in life rather than what was learned early; in the less basic and less emotional aspects of society than in their opposites; in the simple elements rather than in the complex ones; in form rather than in substance; and in elements that are acceptable to the culture rather than in strange elements.
Furthermore, social change is easier if it is gradual. For example, it comes more readily in human relations on a continuous scale rather than one with sharp difference. This is one reason why change has not come more quickly to Black Americans as compared to other American minorities,because of the sharp difference in appearance between them and their white counterparts.
The passage is mainly discussing__________.A.certain factors that determine the ease with which social changes occur
B.certain factors that promote social change
C.the necessity of social change
D.two different societies
考题
共用题干
Most Adults in U.S.Have Low Risk of Heart DiseaseMore than 80 percent of U .S.adults have a less than 10-percent risk of developing heart dis- ease in the next 10 years,according to a report in the Journal of the American College of Cardiolo-gy（心脏病学）.Just 3 percent have a risk that exceeds 20 percent.“I hope that these numbers will give physicians,researchers,health policy analysts,and others a better idea of how coronary（心脏冠状动脉的）heart disease is distributed in the U. S. population ,” lead（带头的）author Dr. Earl S. Ford , from the Centers for Disease Control and Prevention in Atlanta,said in a statement.The findings are based on analysis of data from 13,769 subjects,between 20 and 79 years of age , who participated in the Third National Health and Nutrition（营养的供给）Examination Sur- vey from 1988 to 1994.Overall,82 percent of adults had a risk of less than 10 percent,15 percent had a risk that fell between 10 to 20 percent and 3 percent had a risk above 20 percent,The proportion of subjects in the highest risk group increased with advancing age,and men were more likely than women to be in this group. By contrast, race or ethnicity（种族划分）had little effect on risk distributions.Although the report suggests that most adults have a low 10-year risk of heart disease,a large proportion have a high or immediate risk,Dr. Daniel S .Berman,from Cedars-Sinai Medi- cal Center in Los Angeles,and Dr. Nathan D.Wong,from the University of California at Irvine, note in a related editorial.Aggressive treatment measures and public health strategies are needed to shift the overall population risk downward,they add.Which of the following statements is NOT right?A:The 10-year risk of heart disease is low for most U.S.adult.B: Elderly people have a higher risk of heart disease than younger people.C: Women have a higher risk of heart disease than man.D: The distribution of the risk of heart disease are hardly related to race.
考题
Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways． The simple reason for this is that there are more different ways of looking at things present in the first kind of society． There are more ideas,more disagreements in interest,and more groups and organizations with different beliefs． In addition, there is usually a greater worldly interest and greater tolerance in mixed societies． All these factors tend to promote social change by opening more areas of life to decision． In a society where people are quite similar in many ways, there are fewer occasions for people to see the need or the opportunity for change because everything seetns to be the same． And although conditions may not be satisfactory, they are at least customary and undisputed．
Within a society, social change is also likely to occur more frequently and more readily in the material aspects of the culture than in the non-material, for example, in technology rather than in values; in what has been learned later in life rather than what was learned early; in the less basic mad less emotional aspects of society than in their opposites ; in the simple elements rather than in the complex ones; in form rather than in substance; and in elements that are acceptable to the culture rather than in strange elements．
Furthermore, social change is easier if it is gradual． For example, it comes more readily in human relations on a continuous scale rather than one with sharp difference． This is one reason why change has not come more quickly to Black Americans as compared to other American minorities, because of the sharp difference in appearance between them and their white counterparts．
Social change is less likely to occur in a society where people are quite similar in many ways because ____A. people there have got so accustomed to their conditions that they seldom think it necessary to change
B. people there have identical needs that can be satisfied without much difficulty
C. people there are easy to please
D. oeople there are less disputed
考题
Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways． The simple reason for this is that there are more different ways of looking at things present in the first kind of society． There are more ideas,more disagreements in interest,and more groups and organizations with different beliefs． In addition, there is usually a greater worldly interest and greater tolerance in mixed societies． All these factors tend to promote social change by opening more areas of life to decision． In a society where people are quite similar in many ways, there are fewer occasions for people to see the need or the opportunity for change because everything seetns to be the same． And although conditions may not be satisfactory, they are at least customary and undisputed．
Within a society, social change is also likely to occur more frequently and more readily in the material aspects of the culture than in the non-material, for example, in technology rather than in values; in what has been learned later in life rather than what was learned early; in the less basic mad less emotional aspects of society than in their opposites ; in the simple elements rather than in the complex ones; in form rather than in substance; and in elements that are acceptable to the culture rather than in strange elements．
Furthermore, social change is easier if it is gradual． For example, it comes more readily in human relations on a continuous scale rather than one with sharp difference． This is one reason why change has not come more quickly to Black Americans as compared to other American minorities, because of the sharp difference in appearance between them and their white counterparts．
The expression "greater tolerance" (Para． 1) refers to_____A. greater willingness to accept social change
B. quicker adaptation to changing circumstances
C. more respect for different beliefs and behavior
D. greater readiness to agree to different opinions and ideas
考题
In his time he enjoyed a reputation_______.A.as great as Mozart,if not greater than
B.as great as,if not greater than,Mozart
C.as great,if not greater,as Mozart
D.greater,if not as great as Mozart
考题
The Chief Justice of the Supreme Court（）Ahas much greater power than other justices of the Supreme CourtBhas no greater voting power than other justices of the Supreme CourtChas greater say in deciding a caseDhas greater voting power than other justices of the Supreme Court
考题
When is the connection concentrator enabled?（）A、When the value of MAX_CONNECTIONS is greater than the value of MAX_COORDAGENTS. B、When the value of MAX_AGENTS is greater than the value of MAX_CLIENTS. C、When the value of NUM_AGENTS is greater than the value of MAX_AGENTS. D、When the value of NUM_CONNECTIONS is greater than the value of NUM_COORDAGENTS.
考题
使用限制检索技术查找2000年以来的计算机方面的文献，检索式为：（）A、computer? ? And Greater than 1999B、computer* ? And Greater than 1999C、computer? *And Greater than 1999D、computer** And Greater than 1999
考题
单选题According to the passage, which of the following is true?A
People in allocations are unwilling to conform to a general pattern.B
Conformity is a special characteristic of business.C
Businessmen are all original thinkers.D
Businessmen are provided with greater opportunities than people in other professions.
考题
单选题Passage1Lonely people, it seems, are at greater risk than the gregarious of developing illnesses associated with chronic inflammation, such as heart disease and certain cancers.A paper published last year in the Public Library of Science, Medicine, shows the effect on mortality of loneliness is comparable with that of smoking and drinking after examining the results of 148 previous studies and controlled for factors such as age and pre-existing illness.Steven Cole of the University of Califormia, Los Angeles, thinks he may know why this is so.He told the American Association for the Advancement of Science meeting in Washington,D.C., about his work studying the expression of genes in lonely people. Dr. Cole harvested samples of white blood cells from both lonely and gregarious people. He then analysed the activity of their genes, as measured by the production of a substance called messenger RNA. This molecule carries instructions from the genes telling a cell which proteins to make. The level of messenger RNA from most genes was the same in both types of people. There were several dozen genes, however, that were less active in the lonely, and several dozen others that were more active. Moreover, both the less active and the more active gene types came from a small number of functional groups.Broadly speaking, the genes less active in the lonely were those involved in staving off viral infections. Those that were more active were involved in protecting against bacteria. Dr. Cole suspects this could help explain not only why the lonely are iller, but how, in evolutionary terms, this odd state of affairs has come about.The crucial bit of the puzzle is that viruses have to be caught from another infected individual and they are usually species-specific. Bacteria, in contrast, often just lurk in the environment, and may thrive on many hosts. The gregarious are therefore at greater risk than the lonely of catching viruses, and Dr. Cole thus suggests that past evolution has created a mechanism which causes white cells to respond appropriately. Conversely, the lonely are better off ramping up their protection against bacterial infection, which is a bigger relative risk to them.What Dr. Cole seems to have revealed, then, is a mechanism by which social environment reaches inside a person's body and tweaks its genome so that it responds appropriately. It is not that the lonely and the gregarious are genetically different from each other. Rather, their genes are regulated differently, according to how sociable an individual is. Dr. Cole thinks this regulation is part of a wider mechanism that tunes individuals to the circumstances they find themselves in.Dr. Cole made an analysis of the activity of the genes by______.A
measuring the level of messenger RNAB
calculating the number of more active gene typesC
instructing the production of certain proteinsD
comparing less active genes with more active ones
考题
单选题The Chief Justice of the Supreme Court（）A
has much greater power than other justices of the Supreme CourtB
has no greater voting power than other justices of the Supreme CourtC
has greater say in deciding a caseD
has greater voting power than other justices of the Supreme Court
考题
单选题Passage1Lonely people, it seems, are at greater risk than the gregarious of developing illnesses associated with chronic inflammation, such as heart disease and certain cancers.A paper published last year in the Public Library of Science, Medicine, shows the effect on mortality of loneliness is comparable with that of smoking and drinking after examining the results of 148 previous studies and controlled for factors such as age and pre-existing illness.Steven Cole of the University of Califormia, Los Angeles, thinks he may know why this is so.He told the American Association for the Advancement of Science meeting in Washington,D.C., about his work studying the expression of genes in lonely people. Dr. Cole harvested samples of white blood cells from both lonely and gregarious people. He then analysed the activity of their genes, as measured by the production of a substance called messenger RNA. This molecule carries instructions from the genes telling a cell which proteins to make. The level of messenger RNA from most genes was the same in both types of people. There were several dozen genes, however, that were less active in the lonely, and several dozen others that were more active. Moreover, both the less active and the more active gene types came from a small number of functional groups.Broadly speaking, the genes less active in the lonely were those involved in staving off viral infections. Those that were more active were involved in protecting against bacteria. Dr. Cole suspects this could help explain not only why the lonely are iller, but how, in evolutionary terms, this odd state of affairs has come about.The crucial bit of the puzzle is that viruses have to be caught from another infected individual and they are usually species-specific. Bacteria, in contrast, often just lurk in the environment, and may thrive on many hosts. The gregarious are therefore at greater risk than the lonely of catching viruses, and Dr. Cole thus suggests that past evolution has created a mechanism which causes white cells to respond appropriately. Conversely, the lonely are better off ramping up their protection against bacterial infection, which is a bigger relative risk to them.What Dr. Cole seems to have revealed, then, is a mechanism by which social environment reaches inside a person's body and tweaks its genome so that it responds appropriately. It is not that the lonely and the gregarious are genetically different from each other. Rather, their genes are regulated differently, according to how sociable an individual is. Dr. Cole thinks this regulation is part of a wider mechanism that tunes individuals to the circumstances they find themselves in.What message does Dr.Cole seem to convey by the mechanism？A
The lonely people differ in genes from the gregarious people.B
Sociability can adjust a person's genome and make it work properly.C
The lonely people can become sociable if they regulate their genes.D
Individuals have to find their own ways to adapt to the environment.
考题
单选题A semisubmersible which flops between forward and aft angles of trim is likely to have（）.A
KML less than KGLB
an off-center LCGC
LCG greater than LCBD
KML greater than KMT
考题
单选题Passage1Lonely people, it seems, are at greater risk than the gregarious of developing illnesses associated with chronic inflammation, such as heart disease and certain cancers.A paper published last year in the Public Library of Science, Medicine, shows the effect on mortality of loneliness is comparable with that of smoking and drinking after examining the results of 148 previous studies and controlled for factors such as age and pre-existing illness.Steven Cole of the University of Califormia, Los Angeles, thinks he may know why this is so.He told the American Association for the Advancement of Science meeting in Washington,D.C., about his work studying the expression of genes in lonely people. Dr. Cole harvested samples of white blood cells from both lonely and gregarious people. He then analysed the activity of their genes, as measured by the production of a substance called messenger RNA. This molecule carries instructions from the genes telling a cell which proteins to make. The level of messenger RNA from most genes was the same in both types of people. There were several dozen genes, however, that were less active in the lonely, and several dozen others that were more active. Moreover, both the less active and the more active gene types came from a small number of functional groups.Broadly speaking, the genes less active in the lonely were those involved in staving off viral infections. Those that were more active were involved in protecting against bacteria. Dr. Cole suspects this could help explain not only why the lonely are iller, but how, in evolutionary terms, this odd state of affairs has come about.The crucial bit of the puzzle is that viruses have to be caught from another infected individual and they are usually species-specific. Bacteria, in contrast, often just lurk in the environment, and may thrive on many hosts. The gregarious are therefore at greater risk than the lonely of catching viruses, and Dr. Cole thus suggests that past evolution has created a mechanism which causes white cells to respond appropriately. Conversely, the lonely are better off ramping up their protection against bacterial infection, which is a bigger relative risk to them.What Dr. Cole seems to have revealed, then, is a mechanism by which social environment reaches inside a person's body and tweaks its genome so that it responds appropriately. It is not that the lonely and the gregarious are genetically different from each other. Rather, their genes are regulated differently, according to how sociable an individual is. Dr. Cole thinks this regulation is part of a wider mechanism that tunes individuals to the circumstances they find themselves in.What risk may lonely people run according to the first paragraph?A
They can have the same risk as the gregarious.B
They may have symbols of early aging.C
They may fall victim to chronic illnesses.D
They may undergo more severe illnesses.
考题
单选题A vessel towing is showing three forward white masthead lights in a vertical line. This means that the length of the（）.A
towing vessel is less than 50 metersB
towing vessel is greater than 50 metersC
tow is less than 200 metersD
tow is greater than 200 meters
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