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