A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.<br>A:Distress position<br>B:Spoken words“Mayday，Mayday，Mayday”<br>C:Ship's name<br>D:Ship's call letters

A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
A:Distress position
B:Spoken words“Mayday，Mayday，Mayday”
C:Ship's name
D:Ship's call letters

出自：海船船员证

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