A.Distress, Urgency and Safety
B.Vital, Important and Routine
C.NAVAREA, Coastal and local
D.gale, Tsunami and Ice
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A.1,2
B.2,3
C.2,1
D.3,2
A.medical assistance
B.medical advise
C.maritime assistance
D.technical assistance
A.establish a communication channel from the CES, via the International Telex network to the final destination
B.set up a communication channel from your SES, via a satellite, to a CES within your ocean region
C.set up a channel directly to the addressee at the destination
D.establish a channel from your terminal, via the International telex network to a CES within your ocean region
A.The SES
B.The space segment
C.Any CES
D.The CES decided by the applicant
A.ITU
B.IMO
C.INMARSAT ORGANIZATION
D.the nearest CES
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The frequency（）the safety message will be transmitted shall be included in DSC safety call.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
All coast radio stations（）DSC installed for VHF and HF.
The rescue coordination center may（）on stations which interfere with traffic.
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with（）which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
On-scene communications will normally take place between（）.
Ship-to-ship distress alerting should be conducted by（）.
The vessel has stayed in port for seven days because she needs（）.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.