单项选择题
The coordinated broadcast and automated reception of MSI via the INMARSAT EGC system using English to meet the requirements of the SOLAS Convention:（）.
A.international NAVTEX Service
B.FleetNET Service
C.SafetyNet Service
D.WWNWS
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相关考题
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单项选择题
All NAVTEX messages（）owing to their nature of importance.
A.can suppress
B.can be suppressed
C.can not be suppressed
D.are to be suppressed -
单项选择题
The difference between international and national Navtex Service is limited to（）.
A.frequency allocated
B.both language and frequency
C.language used
D.transmission power and time -
单项选择题
A Navtex station in each NAVAREA is usually allowed to have（）for transmission.
A.10 minutes every 4 hours
B.half an hour every other hour
C.irregular period of time
D.5 minutes every two hours
