试题与答案

普通砂轮机使用时,其转速一般为()m/s。A.15 B.25 C.35 D.60

题型:单项选择题

题目:

普通砂轮机使用时,其转速一般为()m/s。

A.15

B.25

C.35

D.60

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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