英语翻译if n is a positive integer,then n(n+1)(n+2) isA even onl

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英语翻译
if n is a positive integer,then n(n+1)(n+2) is
A even only when n is odd
B evne only when n is even
C odd whenever n is odd
D divisible by 3 only when n is odd
E divisible by 4 whenever n is even

如果一个正整数n,n(n + 1)(n + 2)
A甚至只有当n是奇怪的
B本机只甚至当n
C奇怪当n是奇怪、剩余的
D被3整除只有当n是奇怪
E只要甚至n E被4整除

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