求助PREP- cr -10

Austen1985

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?

 

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

(B) In 1994 two new outlets that rent but that do not sell videos opened in Centerville.

(C) Most of the video rental outlets in Centerville rent videos at a discount on certain nights of the week.

(D) People often buy videos of movies that they have previously seen in a theater.

(E) People who own videos frequently loan them to their friends.

 答案是E，E当然是一个decline的原因，但是题目问的是哪个选项weaken the force of the objection that Brad presents.Brad 说there must be anothere explanation.而E正是这个explanation. 所以没有weaken.而A，说这家新公司虽然卖的数量少于旧公司decline的数量，但是由于它rentout more, 所以还是因为新公司的出现影响了旧公司。那么brad的objection就weaken了，因为它说theremust be another explanation, 而不是新公司的影响。

请大家帮忙解释一下

Austen1985

自己顶一下，谢谢各位啦

youngstercao

我也觉得选a,望高手指导

babylarrivee

我回回看好了，雖然我自己也做錯了:


J說1994年租碟店的生意比1993年差了10000片。減少主要是1994年開了一間又租碟又賣便宜碟的店的關係。B說一定有別的原因，因為那間店1994年只賣了4000片碟，因此B反駁的重點主要是在說一定還有別的原因而非祇是因為開這間店的關係。要削弱B的反駁，E說人們買了碟以後就常常借給他們的朋友，所以光是開這間店就足夠讓夠多人不去租碟了，不必再有別的原因，因而削弱B的說法(表示僅只有該原因就足夠!)。A的話還不一定能夠削弱，要是他租4500片出去，賣4000片出去，只搶走了8500片的生意，其它間店的生意還是有因位這家店開導致生意下滑。

不知如此解釋大家是否滿意?

[此贴子已经被作者于2008-12-2 16:05:58编辑过]

caoxueting

谢谢~有道理的

遗失的紫水晶

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