单选题现场通信系指()之间的通信A遇险船和援助单位B遇险船和海岸电台C遇险船与航空器DA+C
单选题
现场通信系指()之间的通信
A
遇险船和援助单位
B
遇险船和海岸电台
C
遇险船与航空器
D
A+C
参考解析
解析:
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