※ 引述《MiniWater (MiniWater)》之铭言： : GWD3-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? : 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 sent 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. : 题意有点看不懂.. : 看网路上的答案在(B)与(E)之间作选择 : 请各位强者帮忙了..谢谢^^ 我认为答案是E... 前提 a.上周四，5艘SO的船开走，装什麽不知道 b.上周五，？艘船开走，装的全是BS c.有4艘船到T，3艘装BS 推论 1.由c知，剩下那艘装的不是BS 2.由b知，周五开走-->装BS 因此 没装BS--> 周五前就开走 由12知 E正确，B则不一定 因为T收到的船有可能都是周五开走的 --

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