单项选择题
Water in the fuel can prevent the engine from starting, prevent it from developing full power, or （）
A.run at an irregular speed
B.create high lube oil temperature
C.cause the engine to over-speed
D.cause blue smoke in the exhaust
单项选择题 In a single acting, four-stroke/cycle diesel engine, the power impulse in an individual cylinder occurs （）
单项选择题 When a ship is involved in an oil pollution incident in China, the ship must report without delay to（）
单项选择题 Faulty operation of diesel engine fuel injection nozzles can be directly caused by （）.