A.one month
B.four months
C.six months
D.one year
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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
A.navigation status
B.ship's heading
C.port of origin
D.time stamp
A.Port of origin
B.Name of vessel
C.Course and speed over ground
D.Draft of vessel
A.satellite communications
B.navigational information
C.weather information
D.position reporting service
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
最新試題
The unit of duration of a dash in Morse Code is（）.
Routine radio communications should be no more than（）.
Electrical wiring on all T-Boats must be（）.
Ships are always（）on water and they are easy to rust.
That ship anchored too close（）my vessel.
She arrived at the anchorage last night and anchored（）berth.
The date and time kept in the radiotelephone log shall commence at（）.
The Vessel Bridge-to-Bridge Radiotelephone Act applies to which towboat?（）
The Vessel Bridge-to-Bridge Radiotelephone Act applies to（）.
Shall we（）wait at the roadstead till there is a free berth for us?