單項(xiàng)選擇題After the ship is out of the harbour and in “Full Speed”, well change （）.

A.to fuel oil instead of diesel oil
B.for fuel oil instead of diesel oil
C.to diesel oil into fuel oil
D.for diesel oil into fuel oil


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1.單項(xiàng)選擇題A diesel engine burns （） a gasoline engine of the same capacity in the same period of time.

A.as much fuel as
B.less fuel than
C.less fuel as
D.more fuel than

2.單項(xiàng)選擇題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

3.單項(xiàng)選擇題（）, 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

4.單項(xiàng)選擇題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