单项选择题

The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.

A.sometimes
B.all times
C.never
D.partly

相关考题

As each MSI message will have a unique identity, the pr...

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

SafetyNet is an international service for the broadcast...

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

Ship-to-ship distress alerting should be conducted by（）...

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

GMDSS