【GMAT考满分数学PS题库】If _真题_答案_解析 GMAT考满分官网

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题目内容

If $a$ is an integer greater than zero, then $a(a+1)(a+3)$ is

A
even only when $a$ is even
B
even only when $a$ is odd
C
odd whenever $a$ is odd
D
divisible by $3$ only when $a$ is odd
E
divisible by $4$ whenever $a$ is odd

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正确答案: E

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