单项选择题
A. heavy line B. heaving line C. head line D. wire rope
If the freeboard is more than 9 meters, we should rig（）...
单项选择题If the freeboard is more than 9 meters, we should rig（）.
A. gangway B. ladder C. pilot ladder D. gangway combined with pilot ladder
The pilot boat took the pilot （）the ship.A.ofB.offC.inD...
单项选择题The pilot boat took the pilot （）the ship.
A.of B.off C.in D.out
If the freeboard is less than 9 meters, we should rig（）...
单项选择题If the freeboard is less than 9 meters, we should rig（）.
A. a gangway B. a pilot ladder C. rope ladder D. gangway combined with pilot ladder
