试题与答案

当工作电压波动超过额定电压值的()时,应停泵进行检查处理。A.±5% B.±10%

题型:单项选择题

题目:

当工作电压波动超过额定电压值的()时,应停泵进行检查处理。

A.±5%

B.±10%

C.±15%

D.±20%

答案:

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参考答案:错

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题型:改错题

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增加:在缺词处加一个漏字符号 (∧) ,并在其下面写出该加的词

删除:把多余的词用斜线( \)划掉。

修改:在错的词下划一横线,并在该词的下面写出修改的词

注意:

1.每处错误及其修改均仅限一次

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