GWD-TN-2 20题

gmatbiguo

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.
绕晕了，这题怎么做的？

sdcar2010

google Shipping Clerk and you will find many threads in this forum.

cdwayne

(E)? since "then closed for the weekend"

ashtreeliu

一、The five specially ordered shipments sent out last week were sent out on Thursday.

周四送出了5件特殊订单

二、Last week, all of the shipments that were sent out on Friday consisted entirely of building supplies

周五送出的所有货品均有building supplies

三、and the shipping department then closed for the weekend

周末不再送货

四、our shipments were sent to Truax Construction last week, only three of which consisted of building supplies

上周送到Truax的订单,只有三单包含building supplies

如果考生能够把信息二和信息四结合在一起思考一下的话，那么

既然周五送出的全部都有building supplies，那么Truax收到的那一单不是bulding supplies 一定不是周五送出的。

再结合周末不送货这个条件，则可以得到这一单一定是周五以前送的

因此答案为E

gmatbiguo

谢谢，很清晰！

toulouselucas

分析的很好

joyceblue520

那为什么不选A啊？如果按你这个分析思路的话

joyceblue520

那么一呢？不考虑了？

zzloveyibo

A的错误在于：文章中并没有说，shipping department的shipments除了specially ordered shipments就是building supplies shipments,也有可能有其他种类的shipments。所以没法判定TC收到的除了building supplies以外的另一个是SPECIALLY ORDERED了。