A.distress alerting
B.locating 406mhz EPIRBs
C.storing distress signal
D.A and B
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A.No, it receives the MSI from ship stations
B.Yes, it can
C.only with NBDP terminal, can it receives the MSI sent from coast stations
D.No, it can not receive the MSI sent from coast stations
A.distress, urgent and safety
B.safety and routine
C.urgent, safety and routine
D.distress, urgent, safety and routine
A.sometimes
B.all times
C.never
D.partly
A.automatically suppressed
B.finished by the operator
C.manually suppressed
D.done again
A.DSC
B.EPIRB
C.EGC
D.NBDP
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Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
（）will form the basis for distress alerting and safety calling.
The rescue coordination center may（）on stations which interfere with traffic.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
Before GMDSS, if the radio officer on board is serious ill,（）.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
By using（）system a ship can send a distress message and know with certainty it will be received.