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52. Birds need so much food energy to maintain their body temperatures that some of them spend most of their time eating. But a comparison of a bird of a seed-eating species to a bird of a nectar-eating species that has the same overall energy requirement would surely show that the seed-eating bird spends more time eating than does the nectar-eating bird, since a given amount of nectar provides more energy than does the same amount of seeds
The argument relies on which one of the following questionable assumptions
(A) Birds of different species do not generally have the same overall energy requirements as each other
(B) The nectar-eating bird does not sometimes also eat seeds
(C) The time it takes for the nectar-eating bird to eat a given amount of nectar is not longer than the time it takes the seed-eating bird to eat the same amount of seeds
(D) The seed-eating bird does not have a lower body temperature than that of the nectar-eating bird
(E) The overall energy requirements of a given bird do not depend on factors such as the size of the bird, its nest-building habits; and the climate of the region in which it lives
答案：C
原文逻辑：能量需求相同，吃Seed的鸟比吃Nectar的鸟花更多时间吃东西，所以相同量的Nectar比seed能量高。
C选项说吃相同量的Nectar花时间不必相同量seed多，我觉得不是必要的假定啊。
取非C选项：吃一坨Nectar花的时间比吃一坨SEED话的时间更长，而吃NECTAR的鸟还是比吃SEED的吃东西时间短，那么也就是说，假如吃SEED的鸟吃完了一坨SEED，吃NECTAR的鸟比它吃饭时间短没有吃完一坨NECTAR，那么这不到一坨的NECTAR和一坨SEED提供了相同能量，也能得出每坨NECTAR能量更高的结论啊~所以不削弱结论啊。
如有错误请指教。
107. Because of the recent transformation of the market, Quore, Inc., must increase the next two years, or it will certainly go bankrupt. In fact, however, Quore’s production structure is such that if a 10 percent productivity increase is possible, then a 20 percent increase is attainable.
If the statements above are true, which one of the following must on the basis of them also be true?
(A) It is only Quore’s production structure that makes it possible for Quore to survive the transformation of the market.
(B) Quore will not go bankrupt if it achieves a productivity increase of 20 percent over the next two years.
(C) If the market had not been transformed, Quore would have required no productivity increase in order to avoid bankruptcy.
(D) Because of the transformation of the market, Quore will achieve a productivity increase of 10 percent over the next two years.
(E) If a 20 percent productivity increase is unattainable for Quore, then it must go bankrupt.
答案：E
原文逻辑：如果不增长，公司要倒，但是公司生产结构决定了如果10%增长是可能的，20%的也是可达到的。
答案E：如果20%不可能达到，那么公司一定倒，我就奇怪了，原文直说不增长的话公司一定倒，又没规定一定要长20%，怎么就选E了。。
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发表于 2011-7-11 12:40:05
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