试题与答案

矿灯蓄电池正常充电时间不得少于()小时。A、10  B、11  C、12  D、13

题型:单项选择题

题目:

矿灯蓄电池正常充电时间不得少于()小时。

A、10 

B、11 

C、12 

D、13

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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