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Column A Column B
The number of different positive divisors of 12 The number of different positive divisors of 50
A.if
B.if
C.if
D.if
【参考答案】
C
解析:本题的正确为(C)。先把12,50分解成质因子乘积形式因此,它们的因子数均为(1+1)×(2+1)=6个。
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