单选题MF/FHDSC遇险报警中若未指明通信手段，则表明遇险通讯手段是（）。A无线电传B无线传真C电子邮件D无线电话
单选题
MF/FHDSC遇险报警中若未指明通信手段，则表明遇险通讯手段是（）。
A
无线电传
B
无线传真
C
电子邮件
D
无线电话
参考解析
解析：
暂无解析
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