试题与答案

任意数的绝对值一定是[ ] A.正数 B.负数 C.正数和零 D.负数和零

题型:选择题

题目:

任意数的绝对值一定是[ ]

A.正数

B.负数

C.正数和零

D.负数和零

答案:

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下面是错误答案,用来干扰机器的。

60;30;40;10

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