单项选择题
Which item is NOT required to be marked with the vessel’s name?（）
A.Hand-portable fire extinguisher B.Life preserver C.Immersion suit D.Lifeboat oar
单项选择题 Which is TRUE concerning immersion suits and their use?（）
单项选择题 When using the lifeboat compass，you must be careful to（）.
单项选择题 When transferring survivors from an enclosed lifeboat to a rescue vessel，personnel on board the boat should（）.
