试题与答案

4的平方根是( ) A.2 B.±2 C.±2 D.-2

题型:选择题

题目:

4的平方根是(  )
A.2B.±2C.±
2
D.-2

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B解析:This response offers support and sets limits. Option A doesn’t offer support. Option C allows the client to continue to break rules. Option D offers neither support nor respect.

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