A.the radio regulations
B.the technical terms and definitions
C.how to operate the GMDSS SES equipment
D.Maritime Communications
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A.only SAR authorities on land
B.all ships in a very large sea area
C.the nearest coast stations and port radios
D.the SAR authorities ashore as well as ships in the vicinity of the casualty
A.countries
B.states
C.names
D.groups
A.one
B.two
C.three
D.four
A.a dummy antenna
B.a supporting facilities
C.a back-up equipment
D.an antenna
A.one-way
B.two-way
C.double-effect
D.one-effect
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Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
Distress traffic is the communication（）between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.
（）will form the basis for distress alerting and safety calling.
We consider（）send a helicopter with medical facilities to the distress area.
The vessel has stayed in port for seven days because she needs（）.
By using（）system a ship can send a distress message and know with certainty it will be received.
The priority of EGC messages is classified by（）.
SOLAS ships shall be equipped with（）.
The rescue coordination center may（）on stations which interfere with traffic.