单项选择题

We are going to carry out an emergency （）.

A.practise
B.practice
C.drill
D.drills

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Throw a （）to the person overboard and help him come on ...

单项选择题Throw a （）to the person overboard and help him come on board.

A.lifeboat
B.life-raft
C.lifebuoy
D.fire mask

（）extinguish oil and electrical fires with water.A.DoB....

单项选择题（）extinguish oil and electrical fires with water.

A.Do
B.Did
C.Never
D.Isn’t

（） fire doors, windows, hatches, accesses and ventilato...

单项选择题（） fire doors, windows, hatches, accesses and ventilators.

A.Closed
B.Close
C.Closing

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