标题: GWD2的一道逻辑。。。 [打印本页] 作者: 小c考托福 时间: 2012-8-9 09:53 标题: GWD2的一道逻辑。。。 Shipping Clerk: The five specially ordered shipments sent outlast week were sent out on Thursday. Last week, all of the shipments that were sent out on Friday consistedentirely of building supplies, and the shipping department then closed for theweekend. Four shipments were sent toTruax Construction last week, only three of which consisted of buildingsupplies.
If the shipping clerk’s statements aretrue, which of the following must also be true?
At least one of the shipments sent to Truax Construction last week was specially ordered.[C1]
At least one of last week’s specially ordered shipments did not consist of building supplies.[C2]
At least one of the shipments sent to Truax Construction was not sent out on Thursday of last week.[C3]
At least one of the shipments that were sent out on Friday of last week was sent to Truax Construction.[C4]
At least one of the shipments sent to Truax Construction last week was sent out before Friday.[C5]