GWD一道.谢谢~

viola1003

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 went 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.

为什么是E类?我每次做这道题目必错...

chopin689

这个题 lz看以前的讨论贴吧  讨论的比较清楚 这是典型的用特例来排除错误选项的题目 更像数学题 而不是逻辑  个人感觉

viola1003

呃..我是新来的...讨论贴吧在哪里啊?

chopin689

http://forum.chasedream.com/dispbbs.asp?boardID=24&ID=87513&page=1