相关考题
-
单项选择题
Ready for （）the boat.
A.lower
B.lowering
C.lowered
D.topped -
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
