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_______ diesel engines generally have two systems of lubrication: a total loss system feeding and a circulating system lubricating the running gear and cooling the pistons.


A.Large crosshead type, crossheads

B.High speed, the cylinders

C.Large crosshead type, the cylinders

D.Four-stroke, pistons and cylinders

请帮忙给出正确答案和分析,谢谢!

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