单项选择题
A.at high water B.when there is a following current C.at slack water D.at flood
If your vessel is dragging her anchor in a strong wind，...
单项选择题If your vessel is dragging her anchor in a strong wind，you should（）.
A.shorten the scope of anchor cable B.increase the scope of anchor cable C.put over the sea anchor D.put over a stern anchor
If you were being assisted by an icebreaker and he sent...
单项选择题If you were being assisted by an icebreaker and he sent you the single letter Q，he would be telling you（）.
A.that he has his engines in reverse B.that he is shortening the distance between vessels C.to shorten the distance between vessels D.that his vessel is healthy
If you wear extra clothing when entering the water afte...
单项选择题If you wear extra clothing when entering the water after abandoning ship it will（）.
A.weigh you down B.preserve body heat C.reduce your body heat D.make it more difficult to breathe
