单项选择题
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
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.
单项选择题 The quality of the fuel oil and lube oil （）, Im afraid.
