Water is used to put out （）(普通火).

单项选择题At each drill a different person should be in （）(负责)of an extinguisher.

A.charge
B.load
C.discharge
D.handle

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.

A. Lower
B. Hoist
C. Put on
D. Put down

单项选择题Collect oil with （）(油桶).

A.cotton
B.rags
C.bucket
D.sawdust

单项选择题（）(解开) the fore and aft ropes.

A.Thatch
B.Detach
C.Tie
D.Launch