水手英语进出港口单项选择题每日一练(2019.01.11)

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1 When you are sure that the weight of the anchor is held by the brake ,take the windlass out of gear. （）

2 前后挽牢! （）

3 The ship is （）at the wharf slowly.

4 A lightship is like an/a（）(普通船舶).

5 The ship has to （） out of harbour.