单项选择题
A.at sea B.on land C.in the air D.throughout the world
For COAPAS-SARSAT system,（）process the distress signal ...
单项选择题For COAPAS-SARSAT system,（）process the distress signal from EPIRB to determine its position and identity.
A.COSPAS-SARSAT B.ground receiving stations C.spacecraft D.satellite SAR instrument
The COSPAS-SARSAT system can provide distress alerts to...
单项选择题The COSPAS-SARSAT system can provide distress alerts to the appropriate authorities（）.
A.anywhere in the world B.at sea C.in the air D.ashore
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.1982 B.1980 C.1984 D.1988
