!!请教一道GWD逻辑题

如果随波逐流

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?

 

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

   Answer: E

给的答案是E,没怎么懂这题的答案是如何分析出来的...谢谢大家发言哦~~~~~

gonghao

would you please specify the source of the qusettion and clearly state on the title?