2. 职称英语
  3. If n is an odd integer, which one of the following is an even integer?A、n * nB、

If n is an odd integer, which one of the following is an even integer?A、n * nB、

游客2024-08-14  9
问题 If n is an odd integer, which one of the following is an even integer?
选项 A、n * n
B、n/4
C、2n+3
D、n*（n+3）
答案 D
解析 题目问如果n是奇数，下列哪个数是偶数?如果n是一个奇数，那么（n +3）就是一个偶数，它们的乘积n*（n+3）一定是一个偶数。
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