单项选择题
（）(除了) the fire drill, there are also boat drill and emergency drill on board.
A. Except B. Although C. In addition to D. But
单项选择题 （）(放低) the embarkation ladder.
单项选择题 Collect oil with （）(油桶).
单项选择题 （）(解开) the fore and aft ropes.
