作者catspace (柏拉图的永恒...)
看板GMAT
标题Re: [计量] GWD-9 Q19
时间Sun Sep 7 15:12:31 2008
※ 引述《chasethesky (坚持!)》之铭言:
: Is the integer n odd?
: (1)n is divisible by 3.
: (2)2n is divisible by twice as many positive integers as n.
: 答案是B
: Statement(2) ALONE is sufficient, but statement (1) alone is not sufficient.
: 其实我是(2)看不懂><
意思是
可以整除2n的数字总数是可以整除n的数字总数的两倍
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1F:推 chasethesky:谢谢回答 但这样子我还是不懂答案为什麽是B >< 09/07 15:59
2F:推 chasethesky:想过以後应该懂啦,谢谢^^ 09/07 16:09