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标题: prep07-10求解 [打印本页]

作者: iiberyl 时间: 2011-8-21 18:42
标题: prep07-10求解

10.(25259-!-item-!-188;#058&001774)

Jennifer:Video rental outlets in Centerville together handled 10,000 fewer video rentals in 1994 than in 1993.The decline in rentals was probably due almost entirely to the February 1994 opening of Videorama, the first and only video rental outlet in the area that, in addition to renting videos, also sold them cheaply.

Brad:There must be another explanation:as you yourself said, the decline was on the order of 10,000 rentals.Yet Videorama sold only 4,000 videos in 1994.

(A) In 1994 Videorama rented out more videos than it sold.

为什么不对？
由问题可知，正解肯定与Videorama有关，而且V租的比卖的还多更说明了V才是影响C的原因。

p.s.正解：
(E) People who own videos frequently loan them to their friends.

作者: bonfin 时间: 2011-10-25 19:54
brad反驳第一个说的话，说rental减少了10000 但是卖的video只是多了4000
意思就是这4000不是减少10000的所有原因

因为第一个的逻辑是：出租减少了，是因为有人开始卖了，大家就有了2个选择，一个租一个买，买的话就不租，自然买的人多租的人就少
第二个人的逻辑是：
卖的video只有4000，但是租的却少出租了 10000,所以他说第一个人的解释不充分

作者: wing8474 时间: 2011-12-26 22:09
我和LZ的思路一样，但是看了楼上的解释顿悟了！多谢~~

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