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单选题
The restaurant owner bought two hundred pounds of potatoes which contain 99% water content. The potatoes are left in the sun for 4 hours. Now the total water content of the potatoes is slightly reduced to 96%. What is the total weight of the potatoes now?
A
194.06 pounds.
B
192.08 pounds.
C
150 pounds.
D
50 pounds.
参考答案
参考解析
解析：
假设蒸发掉的水的重量为x，根据题意，可以得出如下方程式：（200×99%－x）/（200－x）=96%。得出x=150，现在土豆的总重量为200－150=50（磅）。
假设蒸发掉的水的重量为x，根据题意，可以得出如下方程式：（200×99%－x）/（200－x）=96%。得出x=150，现在土豆的总重量为200－150=50（磅）。
更多 “单选题The restaurant owner bought two hundred pounds of potatoes which contain 99% water content. The potatoes are left in the sun for 4 hours. Now the total water content of the potatoes is slightly reduced to 96%. What is the total weight of the potatoes now?A 194.06 pounds. B 192.08 pounds. C 150 pounds. D 50 pounds.” 相关考题
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They eat a lot of potatoes. We eat a lot, too. (改为同义句)They eat a lot of potatoes. ____ _____ _____.
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To top it off, the skewers were presented on a plate with potatoes, sour cream, and a () tomato sauce.
A、spicyB、excessiveC、frozenD、cheerful
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考题
What rhetorical device is used in the sentence: The duties of a soldier are to protect his country and peel potatoes.A.Anticlimax
B.Pun
C.Metaphor
D.Transferred epithet
考题
共用题干
Eating Potatoes Gives Your Immune System a BoostEating potatoes is not only good for bowel health,but also for the whole immune system,especially when they come in the form of a potato salad or eaten cold.In a study on an animal model,researchers in Spain found that pigs fed large quantities of raw potato starch(RPS)not only had a healthier bowel,but also decreased levels of white blood cells,such as leucocytes and lymphocytes in their blood .White blood cells are produced as a result of inflammation or disease, generally when the body is challenged.The general down-regulation of leucocytes observed by the Spanish researchers suggests an overali beneficial effect,a generally more healthy body.The reduction in leucocyte levels was about 15 percent. Lower lymphocyte levels are also indicative of reduced levels of inflammation, but the observed reduction in both lymphocyte density and lymphocyte apoptosis is surprising.In what was the longest study of its kind,pigs were fed RPS over 14 weeks to find out the effect of starch on bowel health."The use of raw potato starch in this experiment is designed to simulate the effects of a diet high in resistant starch,"said study leader Jose Francisco Perez at the Universitat Autonoma de Barcelona,Spain.Humans do not eat raw potatoes,but they do eat a lot of foods that contain resistant starch,such as cold boiled potatoes,legumes,grains,green bananas,pasta and cereals.About 1 0 percent of the starch eaten by human is resistant starch-starch that is not digested in the small intestine and so is shunted into the large intestine where it ferments .Starch consumption is thought to reduce the risk of large bowel cancer and may also have an effect on irritable bowel syndrome (IBS).Immunology expert Lena Ohman's team previously found that the overall lymphocyte levels do not vary for IBS patients,but that lymphocytes are transferred from the peripheral blood to the gut,which support the hypothesis of IBS being at least partially an inflammatory disorder. She says the decrease in lymphocytes observed by the Spanish is therefore interesting,and a diet of resistant starch may be worth trying in lBS patients.Ohman is currently at the Department of Internal Medicine,Goteborg University,Sweden.The study is published in the journal Chemistry and Industry,the magazine of the SCI. What does the reduction in leucocyte levels in the body mean?A: It may mean the reduced levels of inflammation.B: It may mean somewhere in the body is inflamed.C: It means that the body is challenged.D: It means that the body cannot produce leucocytes any more.
考题
共用题干
Eating Potatoes Gives Your Immune System a BoostEating potatoes is not only good for bowel health,but also for the whole immune system,especially when they come in the form of a potato salad or eaten cold.In a study on an animal model,researchers in Spain found that pigs fed large quantities of raw potato starch(RPS)not only had a healthier bowel,but also decreased levels of white blood cells,such as leucocytes and lymphocytes in their blood .White blood cells are produced as a result of inflammation or disease, generally when the body is challenged.The general down-regulation of leucocytes observed by the Spanish researchers suggests an overali beneficial effect,a generally more healthy body.The reduction in leucocyte levels was about 15 percent. Lower lymphocyte levels are also indicative of reduced levels of inflammation, but the observed reduction in both lymphocyte density and lymphocyte apoptosis is surprising.In what was the longest study of its kind,pigs were fed RPS over 14 weeks to find out the effect of starch on bowel health."The use of raw potato starch in this experiment is designed to simulate the effects of a diet high in resistant starch,"said study leader Jose Francisco Perez at the Universitat Autonoma de Barcelona,Spain.Humans do not eat raw potatoes,but they do eat a lot of foods that contain resistant starch,such as cold boiled potatoes,legumes,grains,green bananas,pasta and cereals.About 1 0 percent of the starch eaten by human is resistant starch-starch that is not digested in the small intestine and so is shunted into the large intestine where it ferments .Starch consumption is thought to reduce the risk of large bowel cancer and may also have an effect on irritable bowel syndrome (IBS).Immunology expert Lena Ohman's team previously found that the overall lymphocyte levels do not vary for IBS patients,but that lymphocytes are transferred from the peripheral blood to the gut,which support the hypothesis of IBS being at least partially an inflammatory disorder. She says the decrease in lymphocytes observed by the Spanish is therefore interesting,and a diet of resistant starch may be worth trying in lBS patients.Ohman is currently at the Department of Internal Medicine,Goteborg University,Sweden.The study is published in the journal Chemistry and Industry,the magazine of the SCI. For what a purpose did the researchers use raw potato starch in their experiment?A: They warned to observe how the leucocyte levels reduced in the experimental pigs.B: They wanted to simulate the effects of a diet high in resistant starch.C: They wanted to see how much potato an experimental pig ate every day.D: They wanted to see how much body weight each experimental pig gained in the end.
考题
共用题干
Eating Potatoes Gives Your Immune System a BoostEating potatoes is not only good for bowel health,but also for the whole immune system,especially when they come in the form of a potato salad or eaten cold.In a study on an animal model,researchers in Spain found that pigs fed large quantities of raw potato starch(RPS)not only had a healthier bowel,but also decreased levels of white blood cells,such as leucocytes and lymphocytes in their blood .White blood cells are produced as a result of inflammation or disease, generally when the body is challenged.The general down-regulation of leucocytes observed by the Spanish researchers suggests an overali beneficial effect,a generally more healthy body.The reduction in leucocyte levels was about 15 percent. Lower lymphocyte levels are also indicative of reduced levels of inflammation, but the observed reduction in both lymphocyte density and lymphocyte apoptosis is surprising.In what was the longest study of its kind,pigs were fed RPS over 14 weeks to find out the effect of starch on bowel health."The use of raw potato starch in this experiment is designed to simulate the effects of a diet high in resistant starch,"said study leader Jose Francisco Perez at the Universitat Autonoma de Barcelona,Spain.Humans do not eat raw potatoes,but they do eat a lot of foods that contain resistant starch,such as cold boiled potatoes,legumes,grains,green bananas,pasta and cereals.About 1 0 percent of the starch eaten by human is resistant starch-starch that is not digested in the small intestine and so is shunted into the large intestine where it ferments .Starch consumption is thought to reduce the risk of large bowel cancer and may also have an effect on irritable bowel syndrome (IBS).Immunology expert Lena Ohman's team previously found that the overall lymphocyte levels do not vary for IBS patients,but that lymphocytes are transferred from the peripheral blood to the gut,which support the hypothesis of IBS being at least partially an inflammatory disorder. She says the decrease in lymphocytes observed by the Spanish is therefore interesting,and a diet of resistant starch may be worth trying in lBS patients.Ohman is currently at the Department of Internal Medicine,Goteborg University,Sweden.The study is published in the journal Chemistry and Industry,the magazine of the SCI. What form of potato is the most nutrient to the human body?A: Potato soup.B: Potato cake.C: Potato salad.D: Hot boiled potato.
考题
共用题干
Eating Potatoes Gives Your Immune System a BoostEating potatoes is not only good for bowel health,but also for the whole immune system,especially when they come in the form of a potato salad or eaten cold.In a study on an animal model,researchers in Spain found that pigs fed large quantities of raw potato starch(RPS)not only had a healthier bowel,but also decreased levels of white blood cells,such as leucocytes and lymphocytes in their blood .White blood cells are produced as a result of inflammation or disease, generally when the body is challenged.The general down-regulation of leucocytes observed by the Spanish researchers suggests an overali beneficial effect,a generally more healthy body.The reduction in leucocyte levels was about 15 percent. Lower lymphocyte levels are also indicative of reduced levels of inflammation, but the observed reduction in both lymphocyte density and lymphocyte apoptosis is surprising.In what was the longest study of its kind,pigs were fed RPS over 14 weeks to find out the effect of starch on bowel health."The use of raw potato starch in this experiment is designed to simulate the effects of a diet high in resistant starch,"said study leader Jose Francisco Perez at the Universitat Autonoma de Barcelona,Spain.Humans do not eat raw potatoes,but they do eat a lot of foods that contain resistant starch,such as cold boiled potatoes,legumes,grains,green bananas,pasta and cereals.About 1 0 percent of the starch eaten by human is resistant starch-starch that is not digested in the small intestine and so is shunted into the large intestine where it ferments .Starch consumption is thought to reduce the risk of large bowel cancer and may also have an effect on irritable bowel syndrome (IBS).Immunology expert Lena Ohman's team previously found that the overall lymphocyte levels do not vary for IBS patients,but that lymphocytes are transferred from the peripheral blood to the gut,which support the hypothesis of IBS being at least partially an inflammatory disorder. She says the decrease in lymphocytes observed by the Spanish is therefore interesting,and a diet of resistant starch may be worth trying in lBS patients.Ohman is currently at the Department of Internal Medicine,Goteborg University,Sweden.The study is published in the journal Chemistry and Industry,the magazine of the SCI. All of the following foods are rich in resistant starch EXCEPT______.A: pastaB: grainsC: legumesD: vegetables
考题
Passage Three
Americans are well known for the strange diets they always seem to be following．It seems that Americans like to diet almost as much as they like to eat．New types of diet plans are always coming out．Usually,though,they don't stay popular for long．
There are many diets on the market．It is often difficult to know which ones really work．It's also hard to believe how fast a dieter is supposed to shed pounds．A lot has been written about dieting．And some interesting facts about diets and foods have been discovered．
For example,did you know that the more celery you eat,the more weight you will lose?Celery has“negative”calories．The body burns up more calories digesting a piece of celery than there are in the celery stick itself．
Dieters?shun?potatoes because they think they are fattening．But they aren't．A potato has about the same number of calories as an apple．To gain a single pound,you would have to eat eleven pounds of potatoes!
Some dieters even worry about getting fat from licking postage stamps．But they have nothing to worry about．The glue on an average stamp has only about one-tenth of a calorie．Maybe a diet of post-age stamps would be popular?
This passage is all about______A.vegetables
B.fads
C.Americans
D.dieting
考题
Many peopleeat potatoes becauseA. it has remained a controversial issue
B. they are rising rapidly
C. they are very nourishing
D. nobody eats it
E. its yield is high
F. raw potatoes can decay easily during transit
考题
Feed the World with Potatoes
1. As food prices continue to rise rapidly,there is growing concern about the effect it will have among the world’s poor.
2. Increasingly, experts are looking to thepotato as a possible low-cost solution to feeding the hungry. To emphasize the issue, the United Nations has called the potato “a hidden treasure” and named 2008 the International Year of the Potato. Here’s how potatoes could end the food crisis.
3. The potato matures more quickly, on less land and in harsher climate than most other major crops. Up to 85 percent of the plant is eatable, compared with around 50 percent of cereals. Its broad adaptability to a wide variety of farming systems is also note worthy.
4. Potatoes are an excellent source of complex carbohydrates, which is release their energy slowly, and have only 5 percent of wheat’ s fat content. They contain only a quarter of the calories of bread and,according to the Potato Center, when boiled, potatoes have more protein and nearly twice the calcium as corn. Additionally, they are good source of vitamin C, iron, potassium(钾)and zinc(锌).
5. The food and Agriculture Organization recently surveyed food price inflation in over 70 of the poor countries. Cereal price inflation was much higher and far more widespread than for potatoes. A significant factor behind the potato’ s affordability is the fact that unlike other agriculture products, the potato is not yet a global commodity, and has therefore not attracted speculative investors. Raw potatoes are heavy and carrot during transmit, so global trade has been show to take off. Also, potatoes are susceptible(易受影响的) to infection with disease, hindering(阻碍) export. According to analysts’ estimates, less than 5 percent of potatoes are traded internationally, with prices driven primarily by local tastes instead of international demand.
文章(8~15)
Paragraph 2_____A. Potatoes’ Lower Inflation
B. Major Food Crops
C. Healthy Food
D. Higher Output
E. Growing Importance of Potatoes
F. High Price
考题
Paragraph 5_____A. Potatoes’ Lower Inflation
B. Major Food Crops
C. Healthy Food
D. Higher Output
E. Growing Importance of Potatoes
F. High Price
考题
The potato isnot yet a global commodity becauseA. it has remained a controversial issue
B. they are rising rapidly
C. they are very nourishing
D. nobody eats it
E. its yield is high
F. raw potatoes can decay easily during transit
考题
The potato is cheap becauseA. it has remained a controversial issue
B. they are rising rapidly
C. they are very nourishing
D. nobody eats it
E. its yield is high
F. raw potatoes can decay easily during transit
考题
The whole world is concerned about food prices becauseA. it has remained a controversial issue
B. they are rising rapidly
C. they are very nourishing
D. nobody eats it
E. its yield is high
F. raw potatoes can decay easily during transit
考题
Paragraph 4_____A. Potatoes’ Lower Inflation
B. Major Food Crops
C. Healthy Food
D. Higher Output
E. Growing Importance of Potatoes
F. High Price
考题
共用题干
第一篇Eating Potatoes Gives Your Immune System a BoostEating potatoes is not only good for bowel health,but also for the whole immune system,especially when they come in the form of a potato salad or eaten cold.In a study on an animal model,researchers in Spain found that pigs fed large quantities of raw potato starch(RPS)not only had a healthier bowel,but also decreased levels of white blood cells, such as leucocytes and lymphocytes（淋巴细胞）in their blood. White blood cells are produced as a result of inflammation or disease,generally when the body is challenged.The general down-regulation of leucocytes observed by the Spanish researchers suggests an overall beneficial effect,a generally healthier body.The reduction in leucocyte levels was about 15 percent.Lower lymphocyte levels are also indicative of reduce levels of inflammation,but the observed reduction in both lymphocyte density and lymphocyte apoptosis is surprising.In what was the longest study of its kind,pigs were fed RPS over 14 weeks to find out the effect of starch on bowel health."The use of raw potato starch in this experiment is designed to simulate the effects of a diet high in resistant starch,"said study leader Jose Francisco Perez at the Universitat Aut6noma de Barcelona,Spain.Humans do not eat raw potatoes,but they do eat a lot of foods that contain resistant starch,such as cold boiled potatoes,legumes,grains,green bananas,pasta and cereals.About 10 percent of the starch eaten by human is resistant starch一starch that is not digested in the small intestine and so is shunted into the large intestine where it ferments.Starch consumption is thought to reduce the risk of large bowel cancer and may also have an effect on irritable bowel syndrome(lBS).Immunology expert Lena Ohman's team previously found that the overall lymphocyte levels do not vary for lBS patients,but that lymphocytes are transferred from the peripheral blood to the gut,which supports the hypothesis of lBS being at least partially an inflammatory disorder. She says the decrease in lymphocytesobserved by the Spanish is therefore interesting,and a diet of resistant starch may be worth trying in IBS patients.Ohman is currently at the Department of Internal Medicine,Goteborg University,Sweden.The study is published in the journal Chemistry and Industry，the magazine of the SCI.For what purpose did the researchers use raw potato starch in their experiment?A:They wanted to observe how the leucocyte levels reduced in the experimental pigs.B:They wanted to simulate the effects of a diet high in resistant starch.C:They wanted to see how much potato an experimental pig ate every day.D:They wanted to see how much body weight each experimental pig gained in the end.
考题
共用题干
第一篇Eating Potatoes Gives Your Immune System a BoostEating potatoes is not only good for bowel health,but also for the whole immune system,especially when they come in the form of a potato salad or eaten cold.In a study on an animal model,researchers in Spain found that pigs fed large quantities of raw potato starch(RPS)not only had a healthier bowel,but also decreased levels of white blood cells, such as leucocytes and lymphocytes（淋巴细胞）in their blood. White blood cells are produced as a result of inflammation or disease,generally when the body is challenged.The general down-regulation of leucocytes observed by the Spanish researchers suggests an overall beneficial effect,a generally healthier body.The reduction in leucocyte levels was about 15 percent.Lower lymphocyte levels are also indicative of reduce levels of inflammation,but the observed reduction in both lymphocyte density and lymphocyte apoptosis is surprising.In what was the longest study of its kind,pigs were fed RPS over 14 weeks to find out the effect of starch on bowel health."The use of raw potato starch in this experiment is designed to simulate the effects of a diet high in resistant starch,"said study leader Jose Francisco Perez at the Universitat Aut6noma de Barcelona,Spain.Humans do not eat raw potatoes,but they do eat a lot of foods that contain resistant starch,such as cold boiled potatoes,legumes,grains,green bananas,pasta and cereals.About 10 percent of the starch eaten by human is resistant starch一starch that is not digested in the small intestine and so is shunted into the large intestine where it ferments.Starch consumption is thought to reduce the risk of large bowel cancer and may also have an effect on irritable bowel syndrome(lBS).Immunology expert Lena Ohman's team previously found that the overall lymphocyte levels do not vary for lBS patients,but that lymphocytes are transferred from the peripheral blood to the gut,which supports the hypothesis of lBS being at least partially an inflammatory disorder. She says the decrease in lymphocytesobserved by the Spanish is therefore interesting,and a diet of resistant starch may be worth trying in IBS patients.Ohman is currently at the Department of Internal Medicine,Goteborg University,Sweden.The study is published in the journal Chemistry and Industry，the magazine of the SCI.What form of potato is the most nutrient to the human body?A:Potato soup.B:Potato cake.C:Potato salad.D:Hot boiled potato.
考题
单选题In Britain people（）four million tons of potatoes every year.A
consumeB
swallowC
exhaustD
dispose
考题
单选题She hardly ever eats （） potatoes.A
bread notB
bread orC
neither bread orD
neither bread nor
考题
单选题The total weight of cargo，fuel，water，stores，passengers and crew，and their effects，that a ship can carry，is the（）.A
bale cubicB
deadweightC
gross tonnageD
loaded displacement
考题
单选题Which of the following procedures decreases the total dissolved solids concentration in the water of an auxiliary boiler?（）A
Hydrazine treatment of condensateB
Frequent compoundingC
Chemical cleaningD
Bottom blowing
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