5. Recently, highly skilled workers in Eastern Europe have left jobs in record numbers to emigrate to the West. It is therefore likely that skilled workers who remain in Eastern Europe are in high demand in their home countries.
Which one of the following, if true, most seriously weakens the argument?
(A) Eastern European factories prefer to hire workers from their home countries rather than to import workers from abroad.
(B) Major changes in Eastern European economic structures have led to the elimination of many positions previously held by the highly skilled emigrants.
(C) Many Eastern European emigrants need to acquire new skills after finding work in the West.
(D) Eastern European countries plan to train many new workers to replace the highly skilled workers who have emigrated.
(E) Because of the departure of skilled workers from Eastern European countries, many positions are now unfilled.
答案是B，完全不知道为什么，B我觉得在加强阿
18. Mary, a veterinary student, has been assigned an experiment in mammalian physiology that would require her to take a healthy, anesthetized dog and subject it to a drastic blood loss in order to observe the physiological consequences of shock. The dog would neither regain consciousness nor survive the experiment. Mary decides not to do this assignment.
Mary's decision most closely accords with which one of the following principles?
(A) All other things being equal, gratuitously causing any animal to suffer pain is unjustified.
(B) Taking the life of an animal is not justifiable unless doing so would immediately assist in saving several animal lives or in protecting the health of a person.
(C) The only sufficient justification for experimenting on animals is that future animal suffering is thereby prevented.
(D) Practicing veterinarians have a professional obligation to strive to prevent the unnecessary death of an animal except in cases of severely ill or injured animals whose prospects for recovery are dim.
(E) No one is ever justified in acting with the sole intention of causing the death of a living thing, be it animal or human.
答案是B
albert的解答是：
18. B
关键是原文的提示信息。The dog would neither regain consciousness nor survive the experiment.
B中Taking the life of an animal 和原文not survive一致。
A中suffer pain 和原文不是最接近。。
C justification for experimenting on animals 没提到能否让狗免死。
D have a professional obligation to strive to prevent the unnecessary death of an animal
虽然也提到了免死。。但和B的区别在于，这里强调的是救护动物。而B强调的是不去杀害动物。所以B更接近原文。
E No one is ever justified in acting with the sole intention of causing the death of a living thing, be it animal or human
其中的sole intention和原文不符，原文是做实验。而且加了human，扩大了范围。
不太认同，因为这样可以解释答案，但与做题的作用却不大，我希望得到一个逻辑上的解答，而不是文字含义差别的解答
21. Whenever a major political scandal erupts before an election and voters blame the scandal on all parties about equally, virtually all incumbents, from whatever party, seeking reelection are returned to office. However, when voters blame such a scandal on only one party, incumbents from that party are likely to be defeated by challengers from other parties. The proportion of incumbents who seek reelection is high and remarkably constant from election to election.
If the voters' reactions are guided by a principle, which one of the following principles would best account for the contrast in reactions described above?
(A) Whenever one incumbent is responsible for one major political scandal and another incumbent is responsible for another, the consequences for the two incumbents should be the same.
(B) When a major political scandal is blamed on incumbents from all parties, that judgment is more accurate than any judgment that incumbents from only on party are to blame.
(C) Incumbents who are rightly blamed for a major political scandal should not seek reelection, but if they do, they should not be returned to office.
(D) Major political scandals can practically always be blamed on incumbents, but whether those incumbents should be voted out of office depends on who their challengers are.
(E) When major political scandals are less the responsibility of individual incumbents than of the parties to which they belong, whatever party was responsible must be penalized when possible. 答案是E
albert的解答是：
19用排除法。这里原文有两个重点，principle需要涵盖到。
1. voter考虑的是party而不是个人，个人只是受party牵扯到
2. 当两个party都有关系的时候，保持原状；到一个party有scandal的时候,另外一个party则有利.
E最符合
不懂得说
5.原文推理：东欧的skilled workers 迁到西欧。所以东欧缺skilled workers 。B说按现在的经济情况，这些人是多余的。当然就不缺的，所以WEAKEN
18。问题是：下列那个原则可以合理化M的决定。所以选项的原则范围要覆盖原文内容。A。M不做是因为动物可能死，A说的是PAIN。PAIN覆盖不了死。B。该原则是取动物性命的行为合理的必要条件是 immediately assist in saving several animal lives or in protecting the health of a person。原文就是没满足这个必要条件（只是为了观察一个现象），所以取动物性命不合理，所以M拒绝。C。 该原则为：动物实验合理的必要条件是动物将来不会SUFFERING。涵盖不了原文内容。DE也同样涵盖不了原文内容
smallkiddy 发表于 2004-10-9 15:30
5. Recently, highly skilled workers in Eastern Europe have left jobs in record numbers to emigrate t ...
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