单项选择题
A.Navarea warnings B.coastal warnings C.local warnings D.Meteorological warnings
MSI stands for（）.A.Mobile Satellite InformationB.Motor ...
单项选择题MSI stands for（）.
A.Mobile Satellite Information B.Motor ship Identification C.Most Serious Information D.Maritime Safety Information
The FEC mode is for（）from（）station to two or more other...
单项选择题The FEC mode is for（）from（）station to two or more other stations when available.
A.receiving messages/one station B.transmission/ one coast station or ship C.communicating /one ship D.contacting/other
The SART should have sufficient battery capacity to ope...
单项选择题The SART should have sufficient battery capacity to operate in the stand-by condition for（）hours and should continuously work for（）hours.
A.120/20 B.56/18 C.100/16 D.96/8
