- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
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
