相关考题
-
单项选择题
We are going to carry out an emergency （）.
A.practise
B.practice
C.drill
D.drills -
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 -
单项选择题
（）extinguish oil and electrical fires with water.
A.Do
B.Did
C.Never
D.Isn’t
