单项选择题
Since the engine doesn’t work well, you’d better （） as soon as possible.
A.reduce its speed
B.find out its trouble
C.eliminate its trouble
D.all the above
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相关考题
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单项选择题
（）, so they are widely used on board ship nowadays.
A.Diesel engines have more advantages in comparison with gasoline engines
B.Diesel engines have more advantages in comparison to gasoline engines
C.Gasoline engines have more advantages in comparison with diesel engines
D.Gasoline engines have more advantages in comparison to diesel engines -
单项选择题
The quality of the fuel oil and lube oil （）, Im afraid.
A.has much to do with the operation of the engine and its life
B.have much to do with the operation of the engine and its life
C.has much doing with the operation of the engine and its life
D.have much doing with the operation of the engine and its life -
单项选择题
The fuel injection system is very important, so any trouble of it will （） the operation of the main engine.
A.be affected
B.affect
C.be effected
D.effect
