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單項選擇題

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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單項選擇題

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

單項選擇題

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

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