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题库 / Prep2007E1-CR-10
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.
Which of the following, if true, would most seriously weaken the force of the objection that Brad presents to Jennifer's explanation?
In 1994 Videorama rented out more videos than it sold.
In 1994 two new outlets that rent but that do not sell videos opened in Centerville.
Most of the video rental outlets in Centerville rent videos at a discount on certain nights of the week.
People often buy videos of movies that they have previously seen in a theater.
People who own videos frequently loan them to their friends.
果因
J引入他因：C的租量下降，是∵V既能租，又能卖
B质疑他因：C下降的比V卖出去的多
要求削弱B，即说明J他因的合理性，增强因果联系
A、V租的比买的多，不能削弱B，不知道具体数量，80分
B、C开了两家只租不卖的，他因，增强了B，削弱了J，反了
C、C的一些店打折，无关，甚至反了
D、顾客喜欢买之前在电影院看过的电影，无关
E、拥有的人（买了）借给朋友，借朋友的就不租了，C的租量下降，还是归功于V可以卖。
可以削弱，100分，CORRECT
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