【【【【数轴法解折扣店问题——时间上有重大逻辑错误】】】】

枪花与蜜糖

想和大家讨论一道CR:


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 non-discount 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?

(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 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.
(E) Many stores in the central shopping district sell types of merchandise that are not available at either SpendLess or Colson’s.


图片在附件里，根据时间推算，Colson's开起来的五年之内 和 Spendless的开设时间点是没有交叉的，也就是说受Colson's影响而关闭的店铺不可能是被Spendless排挤出去的。

图片是我手画的时间轴，结合题干，大家一看便知！

ssstill

同意！
不过speedless的时间点不应该在-4.999，因为题目里说是a SpendLess discount department store that just opened，所以应该接近零点。
因此觉得 OG解释的有不对的地方。。。虽然不敢挑战它！