单项选择题
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
单项选择题 A diesel engine burns （） a gasoline engine of the same capacity in the same period of time.
单项选择题 Since the engine doesn’t work well, you’d better （） as soon as possible.
单项选择题 （）, so they are widely used on board ship nowadays.
