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标题: [讨论]gwd 3 Q20 逻辑 [打印本页]

作者: redgrass 时间: 2007-10-30 00:29
标题: [讨论]gwd 3 Q20 逻辑

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?

A.
At least one of the shipments sent to Truax Construction last week was specially ordered.

B.
At least one of last week’s specially ordered shipments did not consist of building supplies.

C.
At least one of the shipments sent to Truax Construction was not sent out on Thursday of last week.

D.
At least one of the shipments that were sent out on Friday of last week was sent to Truax Construction.

E. At least one of the shipments sent to Truax Construction last week was sent out before Friday.

不懂！完全不懂！答案怎么是E阿？是a吧。

周四寄了5个specially ordered，周五把本周有build supplies 的都寄了，T城一共寄了4个，3个是有build supplies的，那个应该有一个specially order的。

[此贴子已经被作者于2007-10-30 0:34:44编辑过]

作者: crazecat123 时间: 2007-10-31 14:32
你要仔细读题干，不是周五把本周有building supplies的都寄了，而是周五寄的都是building supplies（但周一，三，四也有可能寄了一部分building supplies）。
因为Truax Construction的货物里有不是building supplies，但周五寄的都是building supplies，所以只能说给Truax Construction不是building supplies的货物一定不是周五，在周五之前。

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