试题与答案

Before replacing a piston you should check

题型:单项选择题

题目:

Before replacing a piston you should check the rings to see that all clearances and gaps are within the permissible ().

A.deflection

B.discrepancy

C.error

D.tolerance

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D

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