17. Companies considering new cost-cutting manufacturing processes often compare the projected results of making the investment against the alternative of not making the investment with costs, selling prices, and share of market remaining constant. Which of the following, assuming that each is a realistic possibility, constitutes the most serious disadvantage for companies of using the method above for evaluating the financial benefit of new manufacturing processes? (A) The costs of materials required by the new process might not be known with certainty. (B) In several years interest rates might go down, reducing the interest costs of borrowing money to pay for the investment. (C) Some cost-cutting processes might require such expensive investments that there would be no net gain for many years, until the investment was paid for by savings in the manufacturing process. (D) Competitors that do invest in a new process might reduce their selling prices and thus take market share away from companies that do not. (E) The period of year chosen for averaging out the cost of the investment might be somewhat longer or shorter, thus affecting the result. 答案选D 为什么C不对捏？ 如果按照C说的那题中这种比较的方法就没意义了嘛
Questions 19-20 are based on the following Archaeologists seeking the location of a legendary siege and destruction of a city are excavating in several possible places, including a middle and a lower layer of a large mound. The bottom of the middle layer contains some pieces of pottery of type 3, known to be from a later period than the time of the destruction of the city, but the lower layer does not. 19. Which of the following hypotheses is best supported by the evidence above? (A) The lower layer contains the remains of the city where the siege took place. (B) The legend confuses stories from two different historical periods. (C) The middle layer does not represent the period of the siege. (D) The siege lasted for a long time before the city was destroyed. (E) The pottery of type 3 was imported to the city by traders. 这个题选C 纯属没看懂
14. A recent survey of all auto accident victims in Dole County found that, of the severely injured drivers and front-seat passengers, 80 percent were not wearing seat belts at the time of their accidents. This indicates that, by wearing seat belts, drivers and front-seat passengers can greatly reduce their risk of being severely injured if they are in an auto accident. The conclusion above is not properly drawn unless which of the following is true? (A) Of all the drivers and front-seat passengers in the survey, more than 20 percent were wearing seat belts at the time of their accidents. (B)Considerably more than 20 percent of drivers and front-seat passengers in Dole County always wear seat belts when traveling by car.(C) More drivers and front-seat passengers in the survey than rear-seat passengers were very severely injured. (D) More than half of the drivers and front-seat passengers in the survey were not wearing seat belts at the time of their accidents. (E) Most of the auto accidents reported to police in Dole County do not involve any serious injury. 这个A 没绕过来~ 超过20%在事故中系了安全带 那这不是削弱了题的意思吗
最后一个
15. Six months or so after getting a video recorder, many early buyers apparently lost interest in obtaining videos to watch on it. The trade of businesses selling and renting videos is still buoyant, because the number of homes with video recorders is still growing. But clearly, once the market for video recorders is saturated, businesses distributing videos face hard times. Which of the following, if true, would most seriously weaken the conclusion above? (A) The market for video recorders would not be considered saturated until there was one in 80 percent of homes. (B) Among the items handled by video distributors are many films specifically produced as video features. (C) Few of the early buyers of video recorders raised any complaints about performance aspects of the new product. (D) The early buyers of a novel product are always people who are quick to acquire novelties, but also often as quick to tire of them. (E) In a shrinking market, competition always intensifies and marginal businesses fail. D 最初买这些产品的人也最容易厌倦他们 这怎么就削弱结论了呢？
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发表于 2010-8-18 20:51:24
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