标题: GWD4逻辑题求教 [打印本页] 作者: gmatziyu 时间: 2010-2-19 13:06 标题: GWD4逻辑题求教 Q7: 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 department store that just opened, those locations will not stay vacant for long.In the five years since the opening of Colson’s, a nondiscount department store, a new store 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?
Many customers of Colson’s are expected to do less shopping there than they did before the SpendLess store opened.
Increasingly, the stores that have opened in the central shopping district since Colson’s opened have been discount stores.
At present, the central shopping district has as many stores operating in it as it ever had.
Over the course 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.
Many stores in the central shopping district sell types of merchandise that are not available at either SpendLess or Colson’s.
Answer: Ｂ 请问这题思路是怎样的呢？谢谢－作者: salasbond 时间: 2010-2-19 13:14
一下是OG12的解释 Argument Evaluation Situation Due to competition from a recently opened SpendLess discount department store, discount stores in Goreville’s central shopping district are expected to close within fi ve years. But those locations will not be vacant long, for new stores have replaced all those that closed because of the opening fi ve years ago of a Colson’s nondiscount department store. Reasoning Th e question is which option would most weaken the argument? Th e arguer infers that stores that leave because of the SpendLess will be replaced in their locations by other stores because that is what happened after the Colson’s department came in. Since the reasoning relies on a presumed similarity between the two cases, any information that brings to light a relevant dissimilarity would weaken the argument. If the stores that were driven out by Colson’s were replaced mostly by discount stores, that suggests that the stores were replaced because of a need that no longer exists after the opening of SpendLess. A Th e fact that Colson’s may be seeing fewer customers does not mean that the discount stores that close will not be replaced; they might be replaced by stores that in no way compete with Colson’s or SpendLess. B Correct. Th is option most seriously weakens the argument. C If anything, this strengthens the argument by indicating that Goreville’s central shopping district is thriving. D Th is, too, strengthens the argument because one is more likely to open a new store in an area with a growing population. E Because this statement does not indicate whether any of these stores that off er goods not sold at SpendLess or Colson’s will be among those that are closing, it is not possible to determine what eff ect it has on the strength of the argument. Th e correct answer is B.作者: gmatziyu 时间: 2010-2-19 14:27 标题: 谢谢salasbond!
