SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.<br>A:DSC<br>B:EPIRB<br>C:EGC<br>D:NBDP

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

出自：海船船员证

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