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请教:GWD3-Q20

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.

答案:  E
E选项我明白是对的,可是因为先看到的B我觉得很对就直接选了。翻回来再看的时候依旧觉得B很对啊~~~
如果说周四的special order都是building supplies的话,结论也不成立了啊~我觉得B和E都要有啊~~

拜托GGMM们给我讲讲吧^_^!!
谢谢啊!!!
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这是道争议题

个人以为是E,因为周四除了special order还可以送别的不special order
(个人意见)

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B是推导不出来的。因为题目没说周四运的是什么,当然可以都是建筑材料啦。

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啊~~!谢谢!!!明白啦!!!!
也就是说周四的不special order的可以运building啊~~~

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请问C错在哪里呢

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我认为这道题不是这样的,首先应该分辨出送往TC公司的是否就等同于是specially ordered:如果等同,则BE都对,因为 The five specially ordered shipments sent out last week were sent out on Thursday,这句话明显的说明上周只有五个specially ordered,而且都是在周四送出的(所以2楼说不知道周四送什么是不对的),而送往tc公司的4个中只有三个是building supplies,不考虑tc公司之外的那一个specially ordered,则在周四送出的之中必然有一个不是building supplies;如果不等同,B项就失去了基础,就不可能正确,因为送往TC的和specially ordered的之间就不存在关系了,自然就没有联系了啊,而E项则是正确的,因为周五送出的全是building supplies,而且周五之后港口就关闭了,所以TC中那个不是building supplies的肯定是周五之前送出的。而从A项中可以看出,送往TC的不应定就是specially ordered,所以选E

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关注 ‘Four shipments were sent to Truax Construction’的去向我觉得更容易一些吧 然后就各个选项选个否命题 看否命题是否成立 否命题成立选项就不成立~

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