试题与答案

KQ-150潜孔钻的检修周期(按产量),大修()KM。 A.3--4.5 B.10-

题型:单项选择题

题目:

KQ-150潜孔钻的检修周期(按产量),大修()KM。

A.3--4.5

B.10--12

C.40--50

答案:

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