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标题: 请教GMAT PREP DS [打印本页]

作者: 虚无飘渺    时间: 2006-5-31 07:08     标题: 请教GMAT PREP DS

Is the integer n odd?

(1) n is divisible by 3.

(2) 2n is divisible by twice as many positive integers as n.

A: B. 不理解(2)的含义?


作者: smalllittle    时间: 2006-5-31 15:09

(2)的意思是2n的正整数因子个数是n的正整数因子个数的2倍.




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