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單項(xiàng)選擇題

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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單項(xiàng)選擇題

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

單項(xiàng)選擇題

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

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