单项选择题
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
A.automatically suppressed
B.finished by the operator
C.manually suppressed
D.done again
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相关考题
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单项选择题
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
A.DSC
B.EPIRB
C.EGC
D.NBDP -
单项选择题
Ship-to-ship distress alerting should be conducted by（）.
A.Inmarsat SES
B.VHF /DSC or MF/DSC
C.SART and VHF/DSC
D.Satellite EPIRB and VHF /DSC -
单项选择题
On-scene communications will normally take place between（）.
A.ship in distress and assisting units
B.NCS and RCC
C.RCCs and “on-scene commander” or “coordinator surface search”
D.ship in distress and coast station
