请教一道逻辑题

springwitch · 发表于 2013-7-23 15:09:07

GWD3-Q20:

Shipping Clerk: The five specially ordered shipments sent out last week were sent out on Thursday. Last week, all of the shipments that were sent out on Friday consisted entirely of building supplies, and the shipping department then closed for the weekend. Four shipments were sent to Truax Construction last week, only three of which consisted of building supplies.

If the shipping clerk’s statements are true, which of the following must also be true?

At least one of the shipments sent to Truax Construction last week was specially ordered.
At least one of last week’s specially ordered shipments did not consist of building supplies.
At least one of the shipments sent to Truax Construction was not sent out on Thursday of last week.
At least one of the shipments that were sent out on Friday of last week was sent to Truax Construction.
At least one of the shipments sent to Truax Construction last week was sent out before Friday.

请问为什么A不对？

change17251 · 发表于 2013-7-23 16:51:14

题目中说Four shipments were sent to Truax Construction last week, only three of which consisted of building supplies------这句话可以得出的信息是 4件中只有3件是上周五运送的那么剩下的那一件可以是周一至周四任意一天运送的啊，并不一定是周四的那件specially ordered

而且A还有一个at least，更是大错特错了啊。。。

本贴相关题目 TN-02-CR-20 (PELO)

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