单项选择题
A.EPIRB B.PLB C.ELT D.MCC
（）is capable of finding any 406MHZ beacons no matter wh...
单项选择题（）is capable of finding any 406MHZ beacons no matter where they are.
A.Local User Terminal B.Spacecraft C.Local-mode coverage D.Near polar orbiting satellites
The COSPAS-SARSAT 406MHZ system was adopted as an eleme...
单项选择题The COSPAS-SARSAT 406MHZ system was adopted as an element of the GMDSS by IMO in（）.
A.1992 B.1980 C.1984 D.1988
COSPAS-SARSAT has the function of（）.A.distress alerting...
单项选择题COSPAS-SARSAT has the function of（）.
A.distress alerting B.communication C.broadcasting MSI D.on-scene communication
