單項選擇題Automatic identification systems (AIS) are required to（）.

A.provide safety-related information automatically to shore stations，other vessels and aircraft
B.receive safety-related information automatically from similarly equipped vessels
C.exchange safety-related information with shore-based facilities
D.All of the above


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1.單項選擇題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

2.單項選擇題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

3.單項選擇題AMVER is a system which provides（）.

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

4.單項選擇題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

5.單項選擇題A rigid replica of the International Code flag A may be shown by a vessel（）.

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