When must the Master or person in charge of a ship log the position of load line marks in relation to the surface of the water in the logbook?（）
A. Once a day
B. At the change of every watch
C. Only when in fresh or brackish water
D. Prior to getting underway
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当车辆被减速器挤出时，车轮通过复轨器，依靠复轨器凸缘的横向推力可使车轮复入正轨。复轨器无内外、左右之分。
A. 正确
B. 错误
关于电容值的正确说法是（）。
A. 与电压有关
B. 与电荷有关
C. 与极板间距无关
D. 与电压和电荷无关
（） belongs to the cargo handling equipment.
A. cargo winch
B. chain lifter
C. cable stopper
D. windla
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