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單項(xiàng)選擇題

（） in what position the engine stops there will always be at least one of the cylinders with its starting air valve open to admit compressed air to start the engine.

A.Because
B.Owing to
C.For
D.No matter

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單項(xiàng)選擇題

（） for the camshaft gear train is taken from a spur gear which for a six cylinder engine is at the coupling end.

A.The driven gear
B.The drive
C.The grease
D.The lubricating oil

單項(xiàng)選擇題

（） water is more expensive than fresh water It has high specific heat and low viscosity.

A.Distilled
B.Distilling
C.Boiling
D.Boiled

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