请教一道prep逻辑题

luyinan

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。请问A为什么不对？   谢谢

luyinan

自己顶一下  在线等  谢谢啦

luyinan

还没人吗？？

luyinan

急问啊！！！

愁予

J说Centerville 出租video下降了10000套是因为另一家Videorama。

B说不会，因为Videorama只出租4000套，也就是说他没有能力让c少出租10000套

题目问哪一个削弱B，E给出了一个它因，就是有video的人喜欢把video借给别人，这样即使只有4000套在市面上也有可能由于人们私下里出借是c业务下降。

emile0215021

以下是引用luyinan在2008-7-13 16:43:00的发言：

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。请问A为什么不对？   谢谢

B的意思就是说Cent地区租赁的下降是有别的原因的。（即使新开的V店低价销售了一部分，但是数量上不能引起10,000那么多的租赁减少。）B的意思是说，V店的销售不是引起Cent地区租赁下降的主要原因。题目问哪个事实会减轻B异议的力度，即，使得V店开业成为Cent地区租赁减少的主要原因，那答案E最好。因为如果E成为事实，V店的销售就会成为租赁下降的主要原因了，即由于买碟的人经常借给朋友从而减少了租赁。

如果A事实成立，V店租赁的数量大于卖出的数量，Cent地区租赁E不成立时可能会增加，如果E成立的话可能会减少。因为V店毕竟是开在Cent地区的,V的租赁数是算在Cent地区内的~所以要让V店开业成为该地区租赁减少的主要原因（即削弱B），还是E最好。

刚开始做题，老鸟多指正Orz 

[此贴子已经被作者于2008-7-14 15:38:15编辑过]

jian880821

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

卖出4000，租出5000，加起来9000<10000

E最好