How does a coast radio station communicati
问题:
How does a coast radio station communicating by HF radio normally identify itself?()
A.By its subscriber number
B.By its call sign
C.By its MMSI
D.By its MID
How does a coast radio station communicating by HF radio normally identify itself?()
A.By its subscriber number
B.By its call sign
C.By its MMSI
D.By its MID