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单选题
While some military planners claimed that it would be possible to win a war fought with nuclear weapons, many scientists argued that such a war could not truly be won, because the fallout from nuclear warfare would create a nuclear winter and it also would be rendering the earth uninhabitable.
A

it also would be rendering the earth uninhabitable

B

rendering the earth uninhabitable

C

might have uninhabitably rendered the earth

D

render the earth uninhabitable

E

would also have rendered the earth uninhabitable


参考答案

参考解析
解析:
插入的内容和“create a nuclear winter”构成平行结构,故D项是正确的。
更多 “单选题While some military planners claimed that it would be possible to win a war fought with nuclear weapons, many scientists argued that such a war could not truly be won, because the fallout from nuclear warfare would create a nuclear winter and it also would be rendering the earth uninhabitable.A it also would be rendering the earth uninhabitableB rendering the earth uninhabitableC might have uninhabitably rendered the earthD render the earth uninhabitableE would also have rendered the earth uninhabitable” 相关考题
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考题 In 1986 the government announced it would __________the production of nuclear weapons because of internal and external political pressure.A. boostB. beginC. resumeD. abandon

考题 We must reduce the danger of war by controlling nuclear, chemical and () arms. A、accustomedB、usedC、conventionalD、adjusted

考题 共用题干 If you made a list of all the jobs performed by the different kinds of energy,you would fill many pages.Nuclear energy is used in some areas of the United States.But there are dangers.Waste materials from nuclear______(51)would destroy life if they leaked______(52)the land.When nuclear energy is produced,a lot of______(53)is produced,too,50 a flow of lake or ocean water 15 used to cool the operations.Then the water______(54)to its source.If the returning water were too hot,it would destroy fish and other______(55).Cow manure is being used to produce a kind of______(56).The manure from farms is put into a machine to convert it to a liquid.Then the gas 15 formed______(57)a natural process.If the converter were not 50______(58)at the present time,it would be used in many places to provide______(59).Garbage has become an energy source.It______(60)to oil,steam,or electricity,or it is used on the land.But recent______(61)about power supplies has led to increased interest in the use of wind______(62)a source of electrical power.Windmills are clean and they______(63)no waste.And they use a______(64)resource.Some scientists consider that wind energy systems can fulfill a valuable______(65)in meeting the energy needs of industrialized nations and of the developing world._________(61)A:consideration B:thoughtC:concern D:interest

考题 共用题干 If you made a list of all the jobs performed by the different kinds of energy,you would fill many pages.Nuclear energy is used in some areas of the United States.But there are dangers.Waste materials from nuclear______(51)would destroy life if they leaked______(52)the land.When nuclear energy is produced,a lot of______(53)is produced,too,50 a flow of lake or ocean water 15 used to cool the operations.Then the water______(54)to its source.If the returning water were too hot,it would destroy fish and other______(55).Cow manure is being used to produce a kind of______(56).The manure from farms is put into a machine to convert it to a liquid.Then the gas 15 formed______(57)a natural process.If the converter were not 50______(58)at the present time,it would be used in many places to provide______(59).Garbage has become an energy source.It______(60)to oil,steam,or electricity,or it is used on the land.But recent______(61)about power supplies has led to increased interest in the use of wind______(62)a source of electrical power.Windmills are clean and they______(63)no waste.And they use a______(64)resource.Some scientists consider that wind energy systems can fulfill a valuable______(65)in meeting the energy needs of industrialized nations and of the developing world._________(53)A:high temperature B:hot airC:heat D:warmth

考题 共用题干 If you made a list of all the jobs performed by the different kinds of energy,you would fill many pages.Nuclear energy is used in some areas of the United States.But there are dangers.Waste materials from nuclear______(51)would destroy life if they leaked______(52)the land.When nuclear energy is produced,a lot of______(53)is produced,too,50 a flow of lake or ocean water 15 used to cool the operations.Then the water______(54)to its source.If the returning water were too hot,it would destroy fish and other______(55).Cow manure is being used to produce a kind of______(56).The manure from farms is put into a machine to convert it to a liquid.Then the gas 15 formed______(57)a natural process.If the converter were not 50______(58)at the present time,it would be used in many places to provide______(59).Garbage has become an energy source.It______(60)to oil,steam,or electricity,or it is used on the land.But recent______(61)about power supplies has led to increased interest in the use of wind______(62)a source of electrical power.Windmills are clean and they______(63)no waste.And they use a______(64)resource.Some scientists consider that wind energy systems can fulfill a valuable______(65)in meeting the energy needs of industrialized nations and of the developing world._________(57)A:by B:throughC:with D:from

考题 Text 2 A deal is a deal-except,apparently,when Entergy is involved.The company,a major energy supplier in New England,provoked justified outrage in Vermont last week when it announced it was reneging on a longstanding commitment to abide by the strict nuclear regulations.Instead,the company has done precisely what it had long promised it would not challenge the constitutionality of Vermont’s rules in the federal court,as part of a desperate effort to keep its Vermont Yankee nuclear power plant running.It’s a stunning move.The conflict has been surfacing since 2002,when the corporation bought Vermont’s only nuclear power plant,an aging reactor in Vernon.As a condition of receiving state approval for the sale,the company agreed to seek permission from state regulators to operate past 2012.In 2006,the state went a step further,requiring that any extension of the plant’s license be subject to Vermont legislature’s approval.Then,too,the company went along.Either Entergy never really intended to live by those commitments,or it simply didn’t foresee what would happen next.A string of accidents,including the partial collapse of a cooling tower in 207 and the discovery of an underground pipe system leakage,raised serious questions about both Vermont Yankee’s safety and Entergy’s management–especially after the company made misleading statements about the pipe.Enraged by Entergy’s behavior,the Vermont Senate voted 26 to 4 last year against allowing an extension.Now the company is suddenly claiming that the 2002 agreement is invalid because of the 2006 legislation,and that only the federal government has regulatory power over nuclear issues.The legal issues in the case are obscure:whereas the Supreme Court has ruled that states do have some regulatory authority over nuclear power,legal scholars say that Vermont case will offer a precedent-setting test of how far those powers extend.Certainly,there are valid concerns about the patchwork regulations that could result if every state sets its own rules.But had Entergy kept its word,that debate would be beside the point.The company seems to have concluded that its reputation in Vermont is already so damaged that it has noting left to lose by going to war with the state.But there should be consequences.Permission to run a nuclear plant is a poblic trust.Entergy runs 11 other reactors in the United States,including Pilgrim Nuclear station in Plymouth.Pledging to run Pilgrim safely,the company has applied for federal permission to keep it open for another 20 years.But as the Nuclear Regulatory Commission(NRC)reviews the company’s application,it should keep it mind what promises from Entergy are worth.30.It can be inferred from the last paragraph thatA.Entergy’s business elsewhere might be affected. B.the authority of the NRC will be defied. C.Entergy will withdraw its Plymouth application. D.Vermont’s reputation might be damaged.

考题 Text 2 A deal is a deal-except,apparently,when Entergy is involved.The company,a major energy supplier in New England,provoked justified outrage in Vermont last week when it announced it was reneging on a longstanding commitment to abide by the strict nuclear regulations.Instead,the company has done precisely what it had long promised it would not challenge the constitutionality of Vermont’s rules in the federal court,as part of a desperate effort to keep its Vermont Yankee nuclear power plant running.It’s a stunning move.The conflict has been surfacing since 2002,when the corporation bought Vermont’s only nuclear power plant,an aging reactor in Vernon.As a condition of receiving state approval for the sale,the company agreed to seek permission from state regulators to operate past 2012.In 2006,the state went a step further,requiring that any extension of the plant’s license be subject to Vermont legislature’s approval.Then,too,the company went along.Either Entergy never really intended to live by those commitments,or it simply didn’t foresee what would happen next.A string of accidents,including the partial collapse of a cooling tower in 207 and the discovery of an underground pipe system leakage,raised serious questions about both Vermont Yankee’s safety and Entergy’s management–especially after the company made misleading statements about the pipe.Enraged by Entergy’s behavior,the Vermont Senate voted 26 to 4 last year against allowing an extension.Now the company is suddenly claiming that the 2002 agreement is invalid because of the 2006 legislation,and that only the federal government has regulatory power over nuclear issues.The legal issues in the case are obscure:whereas the Supreme Court has ruled that states do have some regulatory authority over nuclear power,legal scholars say that Vermont case will offer a precedent-setting test of how far those powers extend.Certainly,there are valid concerns about the patchwork regulations that could result if every state sets its own rules.But had Entergy kept its word,that debate would be beside the point.The company seems to have concluded that its reputation in Vermont is already so damaged that it has noting left to lose by going to war with the state.But there should be consequences.Permission to run a nuclear plant is a poblic trust.Entergy runs 11 other reactors in the United States,including Pilgrim Nuclear station in Plymouth.Pledging to run Pilgrim safely,the company has applied for federal permission to keep it open for another 20 years.But as the Nuclear Regulatory Commission(NRC)reviews the company’s application,it should keep it mind what promises from Entergy are worth.27.By entering into the 2002 agreement,Entergy intended toA.obtain protection from Vermont regulators. B.seek favor from the federal legislature. C.acquire an extension of its business license. D.get permission to purchase a power plant.

考题 Text 2 A deal is a deal-except,apparently,when Entergy is involved.The company,a major energy supplier in New England,provoked justified outrage in Vermont last week when it announced it was reneging on a longstanding commitment to abide by the strict nuclear regulations.Instead,the company has done precisely what it had long promised it would not challenge the constitutionality of Vermont’s rules in the federal court,as part of a desperate effort to keep its Vermont Yankee nuclear power plant running.It’s a stunning move.The conflict has been surfacing since 2002,when the corporation bought Vermont’s only nuclear power plant,an aging reactor in Vernon.As a condition of receiving state approval for the sale,the company agreed to seek permission from state regulators to operate past 2012.In 2006,the state went a step further,requiring that any extension of the plant’s license be subject to Vermont legislature’s approval.Then,too,the company went along.Either Entergy never really intended to live by those commitments,or it simply didn’t foresee what would happen next.A string of accidents,including the partial collapse of a cooling tower in 207 and the discovery of an underground pipe system leakage,raised serious questions about both Vermont Yankee’s safety and Entergy’s management–especially after the company made misleading statements about the pipe.Enraged by Entergy’s behavior,the Vermont Senate voted 26 to 4 last year against allowing an extension.Now the company is suddenly claiming that the 2002 agreement is invalid because of the 2006 legislation,and that only the federal government has regulatory power over nuclear issues.The legal issues in the case are obscure:whereas the Supreme Court has ruled that states do have some regulatory authority over nuclear power,legal scholars say that Vermont case will offer a precedent-setting test of how far those powers extend.Certainly,there are valid concerns about the patchwork regulations that could result if every state sets its own rules.But had Entergy kept its word,that debate would be beside the point.The company seems to have concluded that its reputation in Vermont is already so damaged that it has noting left to lose by going to war with the state.But there should be consequences.Permission to run a nuclear plant is a poblic trust.Entergy runs 11 other reactors in the United States,including Pilgrim Nuclear station in Plymouth.Pledging to run Pilgrim safely,the company has applied for federal permission to keep it open for another 20 years.But as the Nuclear Regulatory Commission(NRC)reviews the company’s application,it should keep it mind what promises from Entergy are worth.29.In the author’s view,the Vermont case will testA.Entergy’s capacity to fulfill all its promises. B.the mature of states’patchwork regulations. C.the federal authority over nuclear issues. D.the limits of states’power over nuclear issues.

考题 Text 2 A deal is a deal-except,apparently,when Entergy is involved.The company,a major energy supplier in New England,provoked justified outrage in Vermont last week when it announced it was reneging on a longstanding commitment to abide by the strict nuclear regulations.Instead,the company has done precisely what it had long promised it would not challenge the constitutionality of Vermont’s rules in the federal court,as part of a desperate effort to keep its Vermont Yankee nuclear power plant running.It’s a stunning move.The conflict has been surfacing since 2002,when the corporation bought Vermont’s only nuclear power plant,an aging reactor in Vernon.As a condition of receiving state approval for the sale,the company agreed to seek permission from state regulators to operate past 2012.In 2006,the state went a step further,requiring that any extension of the plant’s license be subject to Vermont legislature’s approval.Then,too,the company went along.Either Entergy never really intended to live by those commitments,or it simply didn’t foresee what would happen next.A string of accidents,including the partial collapse of a cooling tower in 207 and the discovery of an underground pipe system leakage,raised serious questions about both Vermont Yankee’s safety and Entergy’s management–especially after the company made misleading statements about the pipe.Enraged by Entergy’s behavior,the Vermont Senate voted 26 to 4 last year against allowing an extension.Now the company is suddenly claiming that the 2002 agreement is invalid because of the 2006 legislation,and that only the federal government has regulatory power over nuclear issues.The legal issues in the case are obscure:whereas the Supreme Court has ruled that states do have some regulatory authority over nuclear power,legal scholars say that Vermont case will offer a precedent-setting test of how far those powers extend.Certainly,there are valid concerns about the patchwork regulations that could result if every state sets its own rules.But had Entergy kept its word,that debate would be beside the point.The company seems to have concluded that its reputation in Vermont is already so damaged that it has noting left to lose by going to war with the state.But there should be consequences.Permission to run a nuclear plant is a poblic trust.Entergy runs 11 other reactors in the United States,including Pilgrim Nuclear station in Plymouth.Pledging to run Pilgrim safely,the company has applied for federal permission to keep it open for another 20 years.But as the Nuclear Regulatory Commission(NRC)reviews the company’s application,it should keep it mind what promises from Entergy are worth.26.The phrase“reneging on”(Line 3.para.1)is closest in meaning toA.condemning. B.reaffirming. C.dishonoring. D.securing.

考题 共用题干 The FamilyThe structure of a family takes different forms around the world and even in the same society. The family's form changes as it adapts to changing social and economic influences. Until recently,the most common form in North America was the nuclear family,consisting of a married couple with their minor children. The nuclear family is an independent unit. It must be prepared to fend for itself. Individual family members strongly depend on one anoth-er. There is little help from outside the family in emergencies. Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so. In North America,the elderly often do not live with the family;they live in retirement communities and nursing homes.There are many parallels between the nuclear family in industrial societies,such as North America,and of families in societies such as that of the Inuits,who live in harsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh condi-tions,mobility allows the family to hunt for food. For North Americans,the hunt for jobs and improved social status also requires mobility.The nuclear family was not always the North American standard. In a more agrarian time,the small nuclear family was usually part of a larger extended family. This might have included grandparents,mother and father,brothers and sisters,uncles,aunts,and cousins. In North America today,there is a dramatic rise in the number of single-parent households. Twice as many households in the United States are headed by divorced,separated,or never-married individuals as are comprised of nuclear families. The structure of the family,not just in North America,but throughout the world,continues to change as it adapts to changing conditions.Another good title for this passage would be______.A: What Makes a Family? B: The Life of the InuitsC: Living With Hardship D: The Failure of the Nuclear Family

考题 共用题干 The FamilyThe structure of a family takes different forms around the world and even in the same society. The family's form changes as it adapts to changing social and economic influences. Until recently,the most common form in North America was the nuclear family,consisting of a married couple with their minor children. The nuclear family is an independent unit. It must be prepared to fend for itself. Individual family members strongly depend on one anoth-er. There is little help from outside the family in emergencies. Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so. In North America,the elderly often do not live with the family;they live in retirement communities and nursing homes.There are many parallels between the nuclear family in industrial societies,such as North America,and of families in societies such as that of the Inuits,who live in harsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh condi-tions,mobility allows the family to hunt for food. For North Americans,the hunt for jobs and improved social status also requires mobility.The nuclear family was not always the North American standard. In a more agrarian time,the small nuclear family was usually part of a larger extended family. This might have included grandparents,mother and father,brothers and sisters,uncles,aunts,and cousins. In North America today,there is a dramatic rise in the number of single-parent households. Twice as many households in the United States are headed by divorced,separated,or never-married individuals as are comprised of nuclear families. The structure of the family,not just in North America,but throughout the world,continues to change as it adapts to changing conditions.A nuclear family is defined as______.A: a married couple with their minor childrenB: a single father with minor childrenC: parents,grandparents,and childrenD: parents,children,and aunts and uncles

考题 共用题干 The FamilyThe structure of a family takes different forms around the world and even in the same society. The family's form changes as it adapts to changing social and economic influences. Until recently,the most common form in North America was the nuclear family,consisting of a married couple with their minor children. The nuclear family is an independent unit. It must be prepared to fend for itself. Individual family members strongly depend on one anoth-er. There is little help from outside the family in emergencies. Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so. In North America,the elderly often do not live with the family;they live in retirement communities and nursing homes.There are many parallels between the nuclear family in industrial societies,such as North America,and of families in societies such as that of the Inuits,who live in harsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh condi-tions,mobility allows the family to hunt for food. For North Americans,the hunt for jobs and improved social status also requires mobility.The nuclear family was not always the North American standard. In a more agrarian time,the small nuclear family was usually part of a larger extended family. This might have included grandparents,mother and father,brothers and sisters,uncles,aunts,and cousins. In North America today,there is a dramatic rise in the number of single-parent households. Twice as many households in the United States are headed by divorced,separated,or never-married individuals as are comprised of nuclear families. The structure of the family,not just in North America,but throughout the world,continues to change as it adapts to changing conditions.The information in this passage would most likely be found in______.A: an anthropology textbook B: a biology textbookC: a mathematics textbook D: a geography textbook

考题 共用题干 The FamilyThe structure of a family takes different forms around the world and even in the same society.The family's form changes as it adapts to changing social and economic influences.Until recently,the most common form in North America was the nuclear family,consisting of a married couple with their minor children.The nuclear family is an independent unit,It must be prepared to fend for itself.Individual family members strongly depend on one another.There is little help from outside the family in emergencies.Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so.In North America,the elderly often do not live with the family;they live in retirement communities and nursing homes.There are many parallels between the nuclear family in industrial societies,such asNorth America,and of families in societies such as that of the Inuits,who live in harsh environments.The nuclear family structure is well adapted to a life of mobility.In harsh conditions,mobility allows the family to hunt for food.For North Americans,the hunt for jobs and improved social status also requires mobility.The nuclear family was not always the North American standard.In a more agrarian time,the small nuclear family was usually part of a larger extended family.This might have included grandparents,mother and father,brothers and sisters,uncles,aunts,and cousins.In North America today,there is a dramatic rise in the number of single-parent households.Twice as many households in the United States are headed by divorced,separated,or nevermarried individuals as are comprised of nuclear families.The structure of the family,not just in North America,but throughout the world,continues to change as it adapts to changing conditions.The word“mobility” meansA:moneyB:readiness to moveC:organizationD:skill

考题 According to the third paragraph, researchers differed from each other in the problem of_____A. whether nuclear reaction would occur. B. whether the stars would increase its density and temperature. C. whether shock waves would occur. D. whether the uneven forces would flatten the stars.

考题 共用题干 The FamilyThe structure of a family takes different forms around the world and even in the same society.The family's form changes as it adapts to changing social and economic influences.Until recently, the most common form in North America was the nuclear family,consisting of a married couple with their minor children.The nuclear family is an independent unit.It must be prepared to fend for itself. Individual family members strongly depend on one another. There is little help from outside the family in emergencies.Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so.In North America,the elderly often do not live with the family;they live in retirement communities and nursing homes.There are many parallels between the nuclear family in industrial societies,such as NorthAmerica,and of families in societies such as that of the Inuits,who live in harsh environments.The nuclear family structure is well adapted to a life of mobility. In harsh conditions,mobility allows the family to hunt for food.For North Americans,the hunt for jobs and improved social status also requires mobility.The nuclear family was not always the North American standard.In a more agrarian time,the small nuclear family was usually part of a larger extended family.This might have included grandparents,mother and father,brothers and sisters,uncles,aunts,and cousins.In North America today,there is a dramatic rise in the number of single-parent households.Twice as many households in the United States are headed by divorced, separated,or never-married individuals as are comprised of nuclear families. The structure of the family,not just in North America,but throughout the world,continues to change as it adapts to changing conditions.According to the passage,which is the definition of a nuclear family?A:.A nuclear family is a married couple with their minor children.B: A nuclear family is a single father with minor children.C: A nuclear family concludes parents,grandparents,and children.D: A nuclear family concludes parents,children,and aunts and uncles.

考题 共用题干 The FamilyThe structure of a family takes different forms around the world and even in the same society.The family's form changes as it adapts to changing social and economic influences.Until recently, the most common form in North America was the nuclear family,consisting of a married couple with their minor children.The nuclear family is an independent unit.It must be prepared to fend for itself. Individual family members strongly depend on one another. There is little help from outside the family in emergencies.Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so.In North America,the elderly often do not live with the family;they live in retirement communities and nursing homes.There are many parallels between the nuclear family in industrial societies,such as NorthAmerica,and of families in societies such as that of the Inuits,who live in harsh environments.The nuclear family structure is well adapted to a life of mobility. In harsh conditions,mobility allows the family to hunt for food.For North Americans,the hunt for jobs and improved social status also requires mobility.The nuclear family was not always the North American standard.In a more agrarian time,the small nuclear family was usually part of a larger extended family.This might have included grandparents,mother and father,brothers and sisters,uncles,aunts,and cousins.In North America today,there is a dramatic rise in the number of single-parent households.Twice as many households in the United States are headed by divorced, separated,or never-married individuals as are comprised of nuclear families. The structure of the family,not just in North America,but throughout the world,continues to change as it adapts to changing conditions. The information in this passage would most likely be found in______textbook.A: an anthropologyB: a biologyC:.a mathematicsD:.a geography

考题 问答题If increased income is spent on more and larger automobiles, larger houses, and increased consumption of other material goods, the results could cause catastrophic resource exhaustion, and pollution. Take the increase of the consumption of oil for instance. The consumption is so huge that the oil reserves might last only a decade or two if not supplemented by imports.Ten years ago it appeared that nuclear power would solve the anticipated energy crisis. Although supplies of uranium fuel were known to be limited and might become exhausted in half a century, the nuclear power plant has for a long time been a favorite project. But work on it has met with grave problems. The fear of possible atomic explosion and the problem of disposing of polluting byproduct waste have slowed down the construction of further nuclear plants. Eventually atomic technology may be able to control these problems, but at present there seems to be little agreement along atomic scientists about when this can be achieved.

考题 单选题Which of the following is an appropriate title for this passage?A Japan's Nuclear Crisis Causes Fear in Europe.B The Chernobyl Disaster Helps Europe Better Understand Nuclear Power Energy.C German Governments Supports Nuclear Power Energy.D Germany Has Learnt a Lesson From Japan.

考题 判断题The “war on terror” should make it absolutely necessary for global security to rely on nuclear weapons.A 对B 错

考题 单选题According to the passage, which of the following about Europe is TRUE?A It is dependent on Russia for gas and oil.B It has put an end to fossil fuels.C It had a major nuclear accident this year.D It is likely that they would rethink their nuclear power policies.

考题 单选题The mere fact ______ most people believe a nuclear war would be mad does not mean that it will not occur.A whatB whichC thatD why

考题 单选题Hiper is being planned ______.A to compete with NIFB because NIF experiment, even successful, would not produce enough energy to run a nuclear fusion plantC to use the same laser technology but on a larger scaleD to demonstrate the feasibility of nuclear fusion

考题 单选题The mere fact______most people believe a nuclear war would be mad does not mean that it will not occur.A whatB whichC thatD why

考题 单选题By saying Let's hope that this time it really will be the last one, the father meant that______.A he hoped there would be no more wars in the worldB he wished the Second World War had not happenedC he hoped people would build more bonfiresD he wished people would learn many lessons from the war

考题 单选题The rivers flow through some of the world’s grimiest areas, picking up oil, lead and other toxic materials, as well as fertilizer residues and nuclear fallout from Chernobly.A worldly B poisonous C wholesome D void

考题 单选题Although no proof yet exists of the electromagnetic disturbances observed being the results of nuclear weapons testing, diplomats are treating the situation with utmost delicacy.A of the electromagnetic disturbances observed being the results of nuclear weapons testingB regarding the observed electromagnetic disturbances having been the results of nuclear weapons testingC that the electromagnetic disturbances observed were the results of nuclear weapons testingD that nuclear weapons testing resulted in the electromagnetic disturbances having been observedE that the electromagnetic disturbance observed were resulting from nuclear weapons testing