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题库 / GMATLA-CR-44
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.
所有的special都是周四寄出，周五寄出的都是building supplier，周末关门。
TC公司收到4个包裹，（只有）3个是building supplier
那么一定有一个不是building supplier，也就不是在周五寄出，因为周末关门，只能在周五前寄出
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