享受生活，享受GMAT-明天该说再见了吧，亲爱的吉迈特mm

yakev6

感谢大家给我加油哈，alan一定坚持到底哈。

yakev6

GWD-3-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.

形式逻辑：
Special order some thursday
Friday-->building material
TS-->3 building material & 1 other
纵向扫一下选项问的都是至少有一个的，所以考虑从哪一个other入手，
Friday-->building material<=> ~building material --> ~Friday
即所有非building material 都是非周五送的
TS公司有一个非建材，所以至少有一个送到TS的货物不是周五送，又因为周六日关门，所以至少有一个送到TS的货物是在周五以前送的。E

yakev6

74.    (28254-!-item-!-188;#058&002906)

Comcorp Shipping Clerk:  Last week, no shipments of building supplies were sent out on Friday.  The five specially ordered shipments sent out last week were sent out on Thursday, and each of those specially ordered shipments consisted entirely of building supplies.  Four shipments were sent to Truax Construction last week, none of which consisted of building supplies.

If the shipping clerk’s statements are true, which of the following must also be true?
A. All of Comcorp’s shipments of building supplies last week were specially ordered.
B. None of Comcorp’s shipments sent on Friday of last week was sent to Truax Construction.
C. None of the shipments sent by Comcorp to Truax Construction last week was specially ordered.
D. None of Comcorp’s shipments sent on Thursday of last week was sent to Truax Construction.
E. All of Comcorp’s shipments of building supplies last week were sent out on Thursday.

Friday? shipment
Special order --> Thursday --> building supplies
4 shipment to TC-|-> building supplies

Special order --> Thursday -->building supplies
< = >
~Special order <-- ~Thursday <-- ~ building supplies
选C

Special order -->Thursday -->building supplies
=>
special order SOME Thursday SOME Building supplies
=>
Building supplies SOME Thursday SOME special order

选项D
Special order -->Thursday –> building supplies <-|- TC shipments
D错

鸩鸩

每次都把自己所做的放上来呢。lz加油~

晨依Jacqueline

加油加油~~

cathynine

大叔 也在冲刺了  心态保持住！  加油！

双色鹿

大叔也开始冲刺啦！！加油~~~

babybearmm

大树加油~

泾渭不凡

我天。。线性思维方式的形式逻辑。。alan下一步是要拓展到对称逻辑了么。。我天。。

alan加油！这么研究逻辑了，目标很明确呀！加油！

上邪

大叔加油