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單項(xiàng)選擇題

A diesel engine is similar to a gasoline engine except that the former has no （）.

A.cross-head
B.cylinder
C.connecting rod
D.spark plug

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單項(xiàng)選擇題

A common trouble with the fuel pump plungers or fuel valve spindle is （）.

A.broken down
B.stuck
C.oil leakage
D.carbonized

單項(xiàng)選擇題

A common trouble with the fuel pump plunger or fuel valve spindle is （）.

A.water leakage
B.steam leakage
C.oil leakage
D.air leakage