单项选择题
Automatic identification systems (AIS) are expected to broadcast all of the following information EXCEPT（）.
A.navigation status
B.ship's heading
C.port of origin
D.time stamp
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相关考题
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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 -
单项选择题
AMVER is a system which provides（）.
A.satellite communications
B.navigational information
C.weather information
D.position reporting service -
单项选择题
A yellow signal，floating in the air from a parachute，about 300 feet above the water，indicates that a submarine（）.
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
