OG12 104题 百思不得其解~！求高人相助！

mabelren

Although the discount stores in Goreville's central shopping district are expected to close within five years as a result of competition from a Spendless discount separtment store that just opened,those locations will not stay vacant for long.In the five years since the openning of Colson's, a nondiscount department store, a new stpre has opened at the location of every store in the shopping district that closed because it could not compete with Colson's.

which of the following, if true, most seriously weakens the argument?

A. Many customers of Colson's are expected to do less shopping there than they did before the Spendless store opened.
B. Increasingly, the stores that have opened in the central shopping district since colson's opened have been discount stores.
C. At present, the central shopping district has as many stores operating in it as it ever had.
D. Over the courese of the next five years,it is expected that Goreville's population will grow at a faster rate than it has for the past several decades.
E. Many stores in the central shopping district sell types of merchandise that are not available at either Spendless or Colson's.


完全不明白S C  和其他store之间的关系~~~

judydongxueni

就是说不是由于colson，s才倒闭的，是由于其他商店的数量的增加

winny莹

我觉得这道题OG的解释还是很清楚的。  类比无效。

文章说折扣店G因为竞争不过折扣店S所以要倒闭，但是很快会有其他的折扣店来顶替。这个预测的依据是，五年前，许多竞争不过非折扣店C的店面，很快被顶替。

这里，文章假设非折扣店被顶替和折扣店被顶替是一样的。如何削弱，就是证明类比无效。

如果顶替非折扣店的是折扣店，那么就说明非折扣不再有存在的必要。那么同理，顶替折扣店G的就未必还是折扣店了，因为，折扣店也很可能没有存在的必要。

Since the reasoning relies on a presumed similarity ………那段解释再认真读读。

茄子要加油

winny莹 发表于 2010-9-20 08:24
我觉得这道题OG的解释还是很清楚的。  类比无效。文章说折扣店G因为竞争不过折扣店S所以要倒闭，但是 ...

Mark一下！