题目内容（请给出正确答案）

[主观题]

A.pump shaft that is bent or distorted should normally be（)

A.repaired by a suitable welding process

B.straightened by applying heat and torsion

C.reconditioned by metallizing and machining

D.replaced with a satisfactory spare

提问人：网友sulynn 发布时间：2022-01-07

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