单项选择题
In heavy seas you decide to heave to. The lifeboat should be().
A.brought to a position with the stern into the seas B.allowed to take its own head C.brought to lay in the trough D.brought bow into the seas
单项选择题 In heavy seas the helmsman should steer the motor lifeboat().
单项选择题 In an open lifeboat,the lifeboat compass is usually().
单项选择题 If you must land on a beach with an oar-propelled lifeboat through a heavy surf,the recommended method is to().