Before reassembling any machinery you should _____.A.replace all bearings regardless of l

职业资格 自考英语 已帮助 人

Before reassembling any machinery, you should _____.

A.replace all bearings regardless of length of service

B.apply a heavy coat of oil to all mating surfaces

C.clean any corroded surfaces and file all burrs smooth

D.coat all parts with alemite grease

请帮忙给出正确答案和分析,谢谢!

更新中~