问题
单项选择题
COSPAS-SARSAT has the function of().
A.distress alerting
B.communication
C.broadcasting MSI
D.on-scene communication
答案
参考答案:A
COSPAS-SARSAT has the function of().
A.distress alerting
B.communication
C.broadcasting MSI
D.on-scene communication
参考答案:A