2. 外语
  3. If k is an even integer and p and r are odd integers, which of the following CANNOT be all integer?

If k is an even integer and p and r are odd integers, which of the following CANNOT be all integer?

admin2021-05-18  53
问题 If k is an even integer and p and r are odd integers, which of the following CANNOT be all integer?
选项 A、r/k
B、k/p
C、p/r
D、kp/r
E、kr/p
答案A
解析 这道题目只有一个一个选项去排除。对于选项A，分母是偶数，分子是奇数，那么分子不可能整除分母，所以这个数必然不是整数，选择A。
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