单项选择题
A mark or place at which a vessel comes under obligatory entry，transit，or escort procedure is know as（）.
A.Way point B.Receiving point C.Reporting point D.Closest Point
单项选择题 A call between any two ship stations on an intership working frequency shall have a maximum duration of（）.
单项选择题 （），you can’t finish discharging tomorrow!
单项选择题 （），the cargo plan is not well done.
