問題詳情

請依下文回答第 38 題至第 40 題：All of us know from experience that we are much more reluctant to walk away from an ongoing enterprise inwhich we have invested a lot than from one in which we have invested only a little. That is true of our investment inhuman relationships, in business projects, or in the stock market. It is true regardless of whether our investment is inthe form of money, time, or effort.The same principle applies to parental investment in potential offspring. Even at the moment when an egg isfertilized by a sperm, the resulting fertilized embryo generally represents a greater investment for the female than forthe male, because in most animal species the egg is much larger than the sperm. While both eggs and sperms containchromosomes, the egg in addition must contain enough nutrients and metabolic machinery to support the embryo’sfurther development for some time, at least until the embryo can start feeding itself. Sperms, in contrast, need containonly a flagellar motor and sufficient energy to drive that motor and support swimming for at most a few days. As aresult, a mature human egg has roughly one million times the mass of the sperm that fertilizes it. Hence a fertilizedembryo, viewed simply as an early-stage construction project, represents an utterly trivial investment of its father’sbody mass compared to its mother’s. But, that doesn’t mean the female has automatically lost the game of chickenbefore the moment of conception. Along with the one sperm that fertilized the egg, the male may have producedseveral hundred million other sperms in the ejaculation, so that his total investment may be not dissimilar to the female.
38 Based on the premise that “we are much more reluctant to walk away from an ongoing enterprise in which wehave invested a lot than from one in which we have invested only a little,” which one of the following is theeasiest to do?
(A)To burn the first chapter of your PhD dissertation draft after having worked on it for a few weeks
(B)To rewrite the body of your PhD dissertation draft after having spent two whole years on it
(C)To find another dissertation supervisor after having worked with your original supervisor for three years
(D)To change your dissertation topic after working on it for one year and having finished three chapters

參考答案

答案：A
難度：困難0.327586
統計：A(19),B(11),C(17),D(8),E(0)

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