作者chasethesky (坚持!)
看板GMAT
标题[计量] GWD-9 Q19
时间Sun Sep 7 14:59:11 2008
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><
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