When a vessel is alongside the wharf, it’s necessary for the ship to keep a （）hour gangway watch to guarantee the safety of the ship and the cargo.

The head line is （）(松弛的).A.tightB.highC.slackD.low

单项选择题The head line is （）(松弛的).

Write down your(名字)（）,boarding time and personal effect...

单项选择题Write down your(名字)（）,boarding time and personal effects.

When you keep a （）(舷梯班), what are your duties?A. deck w...

单项选择题When you keep a （）(舷梯班), what are your duties?