试题与答案

活塞式空气压缩机润滑油()时需补充。A.符合要求 B.不足 C.太脏 D.过多

题型:单项选择题

题目:

活塞式空气压缩机润滑油()时需补充。

A.符合要求

B.不足

C.太脏

D.过多

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

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