If a and b are integers and a - b=6, then a + b CANNOT be A、0B、less than 6C、gr

游客2024-01-12  10

问题 If a and b are integers and a - b=6, then a + b CANNOT be

选项 A、0
B、less than 6
C、greater than 6
D、an even integer
E、an odd integer

答案 E

解析 若a和b是整数,且a-b=6,那么a+b不能是:
解:本题的正确答案为(E)。由题可得:a=b+6 → a+b=2b+6;所以a+b必然是偶数。
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