单项选择题

In the GMDSS, MSI broadcasts will be made on two dedicated systems:（）and（）.

A.NBDP/VHF radio
B.Inmarsat safetyNet/NAVTEX
C.Safety service / Inmarsat-A
D.Long range / short range

相关考题

International SafetyNet and Navtex Services promulgate ...

单项选择题International SafetyNet and Navtex Services promulgate MSI by means of（）.

A.FEC and ARQ
B.satellite and terrestrial communications
C.radio and telex
D.NBDP

With the help of modern technology, ships are able to r...

单项选择题With the help of modern technology, ships are able to receive automated broadcast of safety messages（）.

A.by day or at night
B.almost round the clock
C.somewhat and sometime
D.from sunrise to sunset

When the power of a SART is on , it will（）.A.transmit d...

单项选择题When the power of a SART is on , it will（）.

A.transmit distress signal
B.send response signal
C.transmit the signal of ship‟s position
D.be interrogated by X-band radar