新Prep cr2 74 求童鞋赏脸看看呀~~~~~经典无conclusion题目

medusa0901

Comcorp Shipping Clerkast week, no shipments of building supplies were sent out on Friday.The five specially ordered shipments sent out last week were sent out on Thursday, and each of those specially ordered shipments consisted entirely of building supplies.Four shipments were sent to Truax Construction last week, none of which consisted of building supplies.

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

A. All of Comcorp’s shipments of building supplies last week were specially ordered. (contradiction)
B. None of Comcorp’s shipments sent on Friday of last week was sent to Truax Construction. (X known, could be)
C. None of the shipments sent by Comcorp to Truax Construction last week was specially ordered.

D. None of Comcorp’s shipments sent on Thursday of last week was sent to Truax Construction. (contradiction)
E. All of Comcorp’s shipments of building supplies last week were sent out on Thursday. (X known)

Last week, Friday No BS
               Thursday 5 SS=BS
Last week, 4 S-->TC-->X BS

To sum up, Last week, 4 S-->TC-->X BS cannot be on Friday, could be on Thursday.

请问答案是C吗？求确认啊！！！！！！！

medusa0901

谢谢YA！！！！！！

ropingmoon

恩。我也觉得是C~~~这题太乱了，我画了半天，严重超时。F：只有BS，TH：SO+BS，去TC的，没有BS，所以去TC的第一不是SO。