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單項選擇題

（） providing lubricating films, oil used in marine diesel engines have to remove heat from oil cooled piston.

A.Except for
B.Beside
C.Except
D.In addition to

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單項選擇題

（） or air venting arrangement is fitted to the fuel supply passage.

A.An air pump
B.A compressor
C.A fuel pump
D.A priming

單項選擇題

（） neutralizes the acid conditions and（） cleanses the rings and grooves.

A.The detergency；the alkalinity
B.The alkalinity；the detergency
C.The inhabitant；the water
D.The additives；the distilled water

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