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How often should the lubricating oil of a diesel e...

海船船员考试

单选题

How often should the lubricating oil of a diesel engine be changed?（）

发布日期：2021-03-22

A.After every trip

B.Every 4000 hours

C.According to manufacturer’s instructions

D.Every time they are shutdown

标签： lubricating oil diesel engine changed

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