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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?

正确答案: E

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【求问】Prep07 CR10 undermine问题 高手快现身!

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楼主
发表于 2014-12-17 16:44:21 | 显示全部楼层
楼主我和你的想法一模一样,有没有高手解答一下。
沙发
发表于 2014-12-17 17:44:19 | 显示全部楼层
J:C城影碟出租店在1994年的出租量比1993年的出租量下降了10,000次。下降的主要原因是因为当地唯一一家租碟店V开业时,除了租碟外,它还以更低的价格将碟片便宜出售
B:应该还有其他解释,正如你所说,租碟量减少了10,000次,但是V店1994年仅仅卖出了4,000张碟

E. 拥有碟的人们常常把他们的碟租给他们的朋友 (削弱结论:卖得多,可以从朋友那里借到,所以租量减少了)
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