GWD3-Q20，看了lawyer说得，有一点没想明白

rock19840717

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.

答案是E

看了几个老帖，我对这句话有点问题， Last week, all of the shipments that were sent out on Friday consisted entirely of building supplies，意思应该是星期五出去的都是包含了所有的BS，但也有别的，那为什么说TC收到的一个不是BS的shipment一定是星期五之前寄的呢？

如果一定是星期五之前寄的，那星期五出去的应该全部是BS没有别的才可以推啊，我对这点不是很明白，谢谢大家指点了

LAWYER的原话：就是红线这句

因为从原文只知周五SHIPMENT的都包括building supplies，不知其他时间SHIPMENT是否包括building supplies，所以去TC的四个SHIPMENT不知何时送出（除知一个不是周五，因为没有building supplies），也有可能除周五外的其他时间，因为也可能其它时间SHIPMENT的有building supplies。因为不知何时送出，所以也不知至少有一个周四送出，何况周四送出也不一定是specially ordered（specially ordered都周四送出，不等于周四送出的都是specially ordered）。所以A和原文信息还差远，不可能是MUST BE。又因为不知其他时间的SHIPMENT是否有building supplies，所以B也错。至于A，B是否相当，我认为两者差别太大了，谈不上相当。

wallstreeter

Last week, all of the shipments that were sent out on Friday consisted entirely of building supplies
我的理解是周五出去的全是bs，这样逻辑就通了

rock19840717

是只有这样理解才通，但是根据这句话看，（were sent out on Friday ）the shipments（consisted entirely of building supplies）包含了所有的BS。。似乎我觉得意思是所有的BS都是那天送的，没说有没有其他的

wallstreeter

所有的BS都是那天送的---consisted all of the building supplies?

consisted entirely of building supplies

        
            
                

entirely

        
            
                
                

Wholly; completely:

    
        
            
                
                

entirely satisfied with the meal.

    
        
            
                
                

Solely or exclusively:

    
        
            
                
                

He was entirely to blame.

consisted exclusively of building supplies
是不是这么理解啊

rock19840717

不知道啊，如果是这么理解，那条件1就没有用上，第二，等于说周五之前是没有BS送出的，那不是过于简单了？

rock19840717

没搞明白，再顶

niufeng

我理解应该是星期五送出的都是BS的，并不排除之前送出的也有BS的。但没有BS的一定是周五前送出的，因为所有shipment周末前就截至了。

errick

这题是不是简单过头了，反而导致这么多猜疑？

上周五发出的货都是bs。而发到truax的货有一次不是bs。那么这一次一定不是上周五发的。

freedomzhx

1. 上周四发了5批货，上周五发的货都是BS

2. 发给TC公司4批，其中三批是BS

上述两个条件可以得到如下关系：

既然上周五发的都是BS，而TC的4批中的三批都是BS，另外一个不是BS，所以这所谓的另外一个肯定是上周五之前的了，因为上周五只发BS的。由于不知道除了上周五之外是否有其他时间发BS的，所以就变成了at least!

rock19840717

如果是这样最好了，问题在于这样的话，告诉我上周四的事干吗呢。。。真是奇怪