很困惑的一道逻辑削弱 og17 654

Goget750

题目是这样的
Although the discount stores in Gorevulle's central shopping district re 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 argurement?

答案选 B) Increasingly, the stores that have opened in the central shopping district since Colson's opened have been discount stores.


大家可以帮忙整理下这道题目的逻辑链吗，我对答案表示不理解.

Fiona09

这道题版上曾经几番讨论过，附上链接供LZ参考~

http://forum.chasedream.com/thread-576459-1-1.html

http://forum.chasedream.com/thread-761413-1-1.html

Goget750

Fiona09 发表于 2016-9-22 12:53
这道题版上曾经几番讨论过，附上链接供LZ参考~

http://forum.chasedream.com/thread-576459-1-1.html

非常感谢