A.Saving the majority would necessarily justify the death of the minority.
B.The immune system can be trained to fight weaker versions of a disease.
C.Mandatory vaccinations are indispensable to the survival of the populace.
D.The process of vaccination remains a mystery to be further resolved.
A.dispose of it naturally
B.fight it off with ease
C.see to it reluctantly
D.split it up properly
开始考试点击查看答案A.The possible negative outcome of administering vaccines.
B.The practical use of a vaccine to control an epidemic disease.
C.The effectiveness of vaccines in eradicating certain disease.
D.The method by which vaccines are employed against the diseas
开始考试点击查看答案A.“Vaccinations： A Blessing or A Curse”
B.“Principles of Vaccinations”
C.“Vaccines： Methods and Implications”
D.“A Miracle Cure Under Attack”
开始考试点击查看答案A.why a robotic caterpillar can find trapped people
B.how a robotic caterpillar work
C.the instruction of the magnetic caterpillar
D.how a robotic caterpillar peristalsis
开始考试点击查看答案A.A smooth surface is indispensable to biped robots and wheeled robots.
B.Flying robots are very inconvenient when moving， because they have too many moving parts.
C.The robotic caterpillar only has rubber capsules filled with a magnetic flui
D.D.It's incapable for wheeled robots to locate trapped people because they are impossible to miniaturiz
开始考试点击查看答案A.to comment and criticize
B.to demonstrate and argue
C.to interest and entertain
D.to explain and inform
开始考试点击查看答案A.As long as more than a million people continue to live in direct poverty we can never hope to achieve national or international stability.
B.We need an international body with teeth-morally and in action. Perhaps the UN should be given its own force.
C.Many members of the UN have only become nation states in the last few decades， so I can understand why they are so keen to hang on to their independence.
D.It is terrifying the way that power is increasingly disseminated to small， completely ruthless groups like terrorists， drug traffickers and local warlords. The great imponderable is that some nut could create a nuclear explosion. Or that some essentially local conflict could escalate out of control. You cannot isolate instability： it gets exported.
E.C.Many members of the UN have only become nation states in the last few decades， so I can understand why they are so keen to hang on to their independence.D.It is terrifying the way that power is increasingly disseminated to small， completely ruthless groups like terrorists， drug traffickers and local warlords. The great imponderable is that some nut could create a nuclear explosion. Or that some essentially local conflict could escalate out of control. You cannot isolate instability： it gets exported.E.The mainly purpose of founding the United Nations is preventing aggressions and wars. It is hard to attribute the success to the United Nations although no new world war broke out since its establishment. The United Nations is always helpless of preventing the regional wars.
G.The notion of sovereignty is more and more strong while the influence of the United Nations is weaker and weaker.
H.A.As long as more than a million people continue to live in direct poverty we can never hope to achieve national or international stability.B.We need an international body with teeth-morally and in action. Perhaps the UN should be given its own force.C.Many members of the UN have only become nation states in the last few decades， so I can understand why they are so keen to hang on to their independence.D.It is terrifying the way that power is increasingly disseminated to small， completely ruthless groups like terrorists， drug traffickers and local warlords. The great imponderable is that some nut could create a nuclear explosion. Or that some essentially local conflict could escalate out of control. You cannot isolate instability： it gets exported.E.The mainly purpose of founding the United Nations is preventing aggressions and wars. It is hard to attribute the success to the United Nations although no new world war broke out since its establishment. The United Nations is always helpless of preventing the regional wars.F.The notion of sovereignty is more and more strong while the influence of the United Nations is weaker and weaker.G.Western countries must increase their development aid programmes， not out of charity but for reasons of self-interest.A. B. C. D. E. F. G.
开始考试点击查看答案A.But the latest big revision to the statistics， published by the Commerce Department at the end of July， told a different story. It showed that personal savings rates are still on a downward trend， and have fallen particularly sharply in the past 18 months.
B.Bill Clinton likes to boast that America's economy is in its best shape for 30 years. In many ways he is right： the expansion has hummed along for more than six years， inflation is low， and unemployment has tumbled to 4.8%， a level not seen since the 1960s. Yet there is one glaring difference between today's economy and the glory days of a generation ago： saving， or rather the lack of it.
C.Personal saving is only one factor in America's overall rate of thrift. Firms make a contribution through corporate saving （in fact， many economists reckon the distinction between household and corporate saving is a rather arbitrary one）， and the government， too， plays a big role. The bigger the deficit， the more it drags down overall savings rates.
D.At one level， this revision cleared up a bit of a mystery. Economists had been surprised at the lack of a “wealth effect”： people did not seem to be spending much more， despite huge appreciation in the value of their stock market assets. The new statistics show much higher consumption.
E.The bigger the deficit， the more it drags down overall savings rates.D.At one level， this revision cleared up a bit of a mystery. Economists had been surprised at the lack of a “wealth effect”： people did not seem to be spending much more， despite huge appreciation in the value of their stock market assets. The new statistics show much higher consumption.E.The picture is not pretty. Since the mid-1970s the long-trend in household saving has been downwards. Recently it appeared that this picture might be changing： personal saving rates in the mid-1990s appeared flat， or even on a slightly upward trend.
G.Last year Americans put only 4.3% of their disposable income in the piggy bank， just about half as much as their parents salted away in 1967. Unless this trend towards profligacy is stemmed， and preferably reversed， America's “miracle economy” will rest on shaky foundations. Less obvious， however， is how to do it.
H.A.But the latest big revision to the statistics， published by the Commerce Department at the end of July， told a different story. It showed that personal savings rates are still on a downward trend， and have fallen particularly sharply in the past 18 months.B.Bill Clinton likes to boast that America's economy is in its best shape for 30 years. In many ways he is right： the expansion has hummed along for more than six years， inflation is low， and unemployment has tumbled to 4.8%， a level not seen since the 1960s. Yet there is one glaring difference between today's economy and the glory days of a generation ago： saving， or rather the lack of it.C.Personal saving is only one factor in America's overall rate of thrift. Firms make a contribution through corporate saving （in fact， many economists reckon the distinction between household and corporate saving is a rather arbitrary one）， and the government， too， plays a big role. The bigger the deficit， the more it drags down overall savings rates.D.At one level， this revision cleared up a bit of a mystery. Economists had been surprised at the lack of a “wealth effect”： people did not seem to be spending much more， despite huge appreciation in the value of their stock market assets. The new statistics show much higher consumption.E.The picture is not pretty. Since the mid-1970s the long-trend in household saving has been downwards. Recently it appeared that this picture might be changing： personal saving rates in the mid-1990s appeared flat， or even on a slightly upward trend.F.Last year Americans put only 4.3% of their disposable income in the piggy bank， just about half as much as their parents salted away in 1967. Unless this trend towards profligacy is stemmed， and preferably reversed， America's “miracle economy” will rest on shaky foundations. Less obvious， however， is how to do it.G.A decade ago， America's abysmal savings rates could be explained to a large extent by government profligacy. But now that the big and deficit has been tamed， and which the prospect of a balanced budget by 2002， it is time to turn attention to Americans themselves.Order：B→ 41→ 42→ 43→ 44→ 45→ DA. B. C. D. E. F. G.
开始考试点击查看答案A.The foolish part is in the belief that one need only consider one's own feelings about the matter and not the feelings of others， especially the partner （egocentrism）； that it is not okay for others but that one knows all about these things so it is all right for oneself （omniscience）； that one can basically do whatever one wants because of who one is （omnipotence）； and that， unlike others suckers， one never will get caught （invulnerability）。
B.How did Richard Nixon ever get involved in Watergate and the subsequent coverup？ What was Bill Clinton thinking when he kept repeating the same mistakes in his personal life？ More recently， how did the intelligent people who ran Enron think they would get away with a shell game？ There are lots of examples. And the truth is， some of them are in my own life， too. None of us is immune.
C.For example， Clinton was very smart in most domains of his life， but in some kinds of interpersonal situations with women， he appears not to have been. The Enron bloodsuckers may have been perfectly fine in their home lives， but given the chance to rip off a corporation， they went for it. Problem is， we may see how sensibly we behave， on average， so that we are not alert for the kinds of situations where we act foolishly.
D.Unfortunately， no. It usually takes others to point it out to us. Or， looking back， we often marvel at how we could have been oblivious to our stupidity. But the problem is that smart people often use their intelligence to find ways to immunize themselves or isolate themselves from feedback. For example， they may hire toadies who just tell them what they want to hear.
E.C.For example， Clinton was very smart in most domains of his life， but in some kinds of interpersonal situations with women， he appears not to have been. The Enron bloodsuckers may have been perfectly fine in their home lives， but given the chance to rip off a corporation， they went for it. Problem is， we may see how sensibly we behave， on average， so that we are not alert for the kinds of situations where we act foolishly.D.Unfortunately， no. It usually takes others to point it out to us. Or， looking back， we often marvel at how we could have been oblivious to our stupidity. But the problem is that smart people often use their intelligence to find ways to immunize themselves or isolate themselves from feedback. For example， they may hire toadies who just tell them what they want to hear.E.Also， sometimes when they make mistakes， people try to cover them up so as not to appear to have been stupid and then look even stupider when the coverup comes to light. That， of course， is what happened to Nixon and Clinton， and to many， many others， such as currency traders who have tried to cover up losses or high-level executives at software companies who have tried to cover up improprieties.
F.The book is not about stupidity in the classical sense， which is usually thought of as a very low IQ. So I would distinguish the “mental retardation” kind of stupidity from the kind of foolishness this book discusses. The problem is that smart people often do not realize how susceptible they are to being foolish， as any number of world leaders have gone out of their way to show.A. B. C. D. E. F.
开始考试点击查看答案A.Passion for personal and familial archival collection.
B.Reception of a hospital delivery bill.
C.Overabundance of trivial personal documents.
D.Explosion of public documents.
E.It is imperative to put archival policies into perspective.
G.What tactics should be adopted in document-saving？One morning a few years ago an envelope arrived from my parents containing the bill from New Rochelle Hospital for my delivery， in 1952. The contents of a basement or attic were being culled， and the bill had turned up in one of the many cardboard reliquaries that have long lent a kind of ballast to my childhood home. The hospital's total charge for a five-day stay including drugs and phone calls， came to $187.86. I was amazed at the cost， to be sure. But I was also struck by something else： that among all those decades' worth of family documents my parents had looked through， the delivery bill was the only thing they thought of sufficient interest to pass alon
H.A.Passion for personal and familial archival collection.B.Reception of a hospital delivery bill.C.Overabundance of trivial personal documents.D.Explosion of public documents.E.It is imperative to put archival policies into perspective.F.What tactics should be adopted in document-saving？One morning a few years ago an envelope arrived from my parents containing the bill from New Rochelle Hospital for my delivery， in 1952. The contents of a basement or attic were being culled， and the bill had turned up in one of the many cardboard reliquaries that have long lent a kind of ballast to my childhood home. The hospital's total charge for a five-day stay including drugs and phone calls， came to $187.86. I was amazed at the cost， to be sure. But I was also struck by something else： that among all those decades' worth of family documents my parents had looked through， the delivery bill was the only thing they thought of sufficient interest to pass along.56At some point most of us realize that having a personal archival strategy is an inescapable aspect of modern life： one has to draw the line somewhere. What should the policy be toward children's drawings and report cards？ Toward personal letters and magazine clippings？ People work out answers to such questions， usually erring， I suspect， on the side of over-accrual of rubbish documents. Almost everyone seems to save— or “curate，” as archaeologist says—issues of National Geographic. That is why in garbage landfills copies of that magazine are rarely found in isolation； rather， they are found in herds， when an entire collection has been discarded after an owner has died or moved.57I happen to be an admirer of the archiving impulse and an inveterate archivist at the household level. Though not quite one of those people whom public-health authorities seem to run across every few years， with a house in which neatly bundled stacks of newspaper occupy all but narrow aisles， I do tend to save almost everything that is personal and familial， and even to supplement this private hoard with oddities of a more public nature—a calling card of Thomas Nast's， for instance， and Kim Philby copy of the Joy of Cooking.58I cannot help wondering， though， whether as a nation we are compiling archives at a rate that will exceed anyone's ability ever to make sense of them. A number of observers have cited the problem of “information overload” as if it were a recent development， largely the consequence of computers. In truth， the archive backlog has been a problem for millennia. Historians obviously have problems when information is scarce， but it's not hard to see a very different problem emerging as source material becomes spectacularly overabundant.59Leave aside the task of assessing an entire epoch and consider what is required in purely physical terms to preserve even a single prominent person's lifetime documentary output. Benjamin Disraeli's correspondence survived down to the level of what today would be an E-mail message： “My darling， I shall be home for dinner at 1/2 pt 7. In haste， Your， Dis.” Woodrow Wilson left so much behind that the historian Arthur S. Link spent his entire career at Princeton University annotating and publishing Wilson's personal papers， in sixty-nine volumes.60Is it preposterous to begin thinking of some of our archives as the new tels？ Tels are the mounds that layer upon layer of former cities make； they are everywhere in the Middle East， harboring the archaeological record of thousands of years of human history. But there are too many of them for more than a few ever to be excavated systematically and understanding what's in even those few takes decades if not centuries.Don't get me wrong： I am not proposing that we discard any thing at all. One rarely knows in advance what will turn out to be of interest or importance and what should have gone directly into the oubliette. It is always delightful when something is discovered. But information does have its natural predators， and it may be that sometimes natural processes work out for the best.A. B. C. D. E. F.
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