The type of davit on which you must turn a crank in order to swing the lifeboat out over the ship’s side is a（）.<br>A:sheath-screw davit<br>B:gravity davit<br>C:radial davit<br>D:bruckner davit

The type of davit on which you must turn a crank in order to swing the lifeboat out over the ship’s side is a（）.
A:sheath-screw davit
B:gravity davit
C:radial davit
D:bruckner davit

出自：海船船员证

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