What should you do if you have transmitted a distress call a number of times on channel 16 and have received no reply?（）<br>A:Repeat the message using any other channel on which you might attract attention<br>B:Key the microphone several times before transmitting again<br>C:Turn up the volume on the receiver before transmitting again<br>D:Report the problem to the head electrician

What should you do if you have transmitted a distress call a number of times on channel 16 and have received no reply?（）
A:Repeat the message using any other channel on which you might attract attention
B:Key the microphone several times before transmitting again
C:Turn up the volume on the receiver before transmitting again
D:Report the problem to the head electrician

出自：海船船员证

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