请教各位G友两道小题，望明示

QingHu

1、If M and N are positive integers that have remainders of 1 and 3,respectively,when divided by 6,which of following could not be a possible value of M+N?

A 86  B52  C34  D28  E10

此类关于余数的题型，思路是什么？

2、本句话应该如何理解 If 3 times as many dozen were sold in April as in May,and twice as many were sold in June as in April.是理解成五月的销量是四月的三倍？还是四月的销量是五月的三倍？

请各位牛牛赐教！感谢！  

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tobytao

第一题选A

思路就是设M=6a+1  N=6b+3   M+N = 6(a+b) +4

所以选项中凡是除以6余4的数，都不是答案

[此贴子已经被作者于2009/10/28 22:38:06编辑过]

tobytao

第二题：4月销量是5月三倍，6月销量是4月两倍

第二个as后面的是比较的基数。这个。。。建议LZ再同时把SC的比较句式一同加强一下。

QingHu

(⊙o⊙)哦，呵呵，明白了，谢谢赐教……继续努力！谢谢tobytao~