【原创】4月换题库后的所有jj汇总4.25 20：50

Jeffxf

好的，谢谢！！

delphie518

Jeffxf, 我看不太懂你第50题的解法，可以请你再解释一下吗？ 谢谢

尤其是2^20=4^10=(3+1)^10=3(……)+1的那部分

delphie518

还有第94题的思路是什么？

Jeffxf

嗯，这是论坛上一个nn的解法，因为（3+1）^10扩展开来有很多项，但可以发现除最后一项为1^10之外，前面所有项中都含有3，所以都能被3整除。具体我就不扩展了，因为有太多位了。道理如下：（3+1）^2=3^2+2*3*1+1^2,可以发现除最后一项外，前面的项中都还有3~~希望mm看懂了：）

Tony08

麻烦jeffxy LZ 加上 CRjj 的20题可能的具体题目

GWD-6-Q28:

Which of the following most logically completes the argument below?

有点类似归纳

According to promotional material published by the city of Springfield, more tourists stay in hotels in Springfield than stay in the neighboring city of Harristown.  A brochure from the largest hotel in Harristown claims that more tourists stay in that hotel than stay in the Royal Arms Hotel in Springfield.  If both of these sources are accurate, however, the county’s “Report on Tourism” must be in error in indicating that _______.(选B)

 

1. more tourists stay in hotel accommodations in Harristown than stay in the Royal Arms Hotel

2. the Royal Arms Hotel is the only hotel in Springfield

3. there are several hotels in Harristown that are larger than the Royal Arms Hotel

4. some of the tourists who have stayed in hotels in Harristown have also stayed in the Royal Arms Hotel

5. some hotels in Harristown have fewer tourist guests each year than the Royal Arms Hotel has

 多谢LZ的辛勤劳动.

Jeffxf

好的，谢谢！！

cxjyl

you are our saver dude. best of best

玻璃青橙

楼主,让我怎么说你好呢!

简直太有才了!

向你学习,28日上午考完,回家就争取给大家做贡献!

玻璃青橙

一个人有100个dress和150个blouse，一共成本15500元，每个dress比blouse贵30元，他以高于成本价60％的价格卖出这些物品，问一个dress和一个blouse一共卖价多少（208~~）

你怎么算出来的208?

玻璃青橙

4.DS   n和m都是positive integer,5*10^n+m是否能被3整除?

  i. n=...记不清了,反正是一个数字,1,2,3之类

  ii. m=1

（B~~）

LX,怎么可能是B

随便一个例子,M=1,N=3,如何整除?

我才做到第4题,已经对你的做法有2个疑问了,呵呵!