单项选择题

Automatic identification systems (AIS) are expected to broadcast all of the following information EXCEPT（）.

A.Port of origin
B.Name of vessel
C.Course and speed over ground
D.Draft of vessel

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单项选择题

A.satellite communications
B.navigational information
C.weather information
D.position reporting service

单项选择题

A.will be coming to periscope depth
B.will be coming to the surface
C.is on the bottom in distress
D.is in distress and will try to surface

单项选择题

A.pulling a submarine cable
B.engaged in diving operations
C.engaged in underway replenishment
D.transferring explosives