单项选择题
If the ship is alongside the wharf，what kind of（）is used?
A.pilot ladder B.rope ladder C.rod ladder D.accommodation ladder
单项选择题 If an emergency pump control is used as the emergency shutdown on a tanker，it must（）.
单项选择题 If a davit-launched life raft aboard a vessel cannot be launched because of damage to the davit，you should（）.
单项选择题 Hand holds or straps on the underside of an inflatable liferaft are provided（）.
