单项选择题

Maritime Safety Information（）International SafetyNet Service and NAVTEX Service.

A.consists of
B.can be received
C.is transmitted by
D.Are made on

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单项选择题

If the DSC controller is configured for MF/HF operation, the distress will be sent on（）.

A.double frequencies
B.single frequency
C.dedicated frequency
D.multiple frequencies

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

If a DSC distress relay is transmitted from coast station , it will（）.

A.indicate the ship in distress that the alert has been received
B.alert ships in the area of a distress incident that a distress has occurred
C.inform other coast station of distress incident
D.repeat the distress alert in 5 minutes