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标题: GWD1-Q7 [打印本页]

作者: vegachang 时间: 2010-5-16 15:40
标题: GWD1-Q7
For similar cars and drivers, automobile insurance for collision damage has always cost more in Greatport than in Fairmont.

olice studies, however, show that cars owned by Greatport residents are, on average, slightly less likely to be involved in a collision than cars in Fairmont. Clearly, therefore, insurance companies are making a greater profit on collision-damage insurance in Greatport than in Fairmont.

Which of the following is an assumption on which the argument depends?

A.Repairing typical collision damage does not cost more in Greatport than in Fairmont.
B.There are no more motorists in Greatport than in Fairmont.
C.Greatport residents who have been in a collision are more likely to report it to their insurance company than Fairmont residents are.
D.Fairmont and Greatport are the cities with the highest collision-damage insurance rates.
E.The insurance companies were already aware of the difference in the likelihood of collisions before the publication of the police reports.

我在A跟E裡猶豫不決, 答案是A 但E為什麼錯呢?

作者: sunflower82 时间: 2010-5-16 20:10
答案很明显是A嘛！利润是收入减去成本。很明显Greatport的收入是比较高的，因为收的保险费比较高。对于保险公司来说，可能的成本是事故发生的几率以及平均理赔金额。文章得出的结论是Greatport的保险公司的利润比较高，那么说明成本至少是一样的才能保证有这样的结论。为保证成本一样，需要证明至少理赔金额是一样的。

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