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单选题
Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?（）
A
If no answer is received on the designated distress frequencies，repeat the distress call on any frequency available
B
Channel 16 (156.8) may be used for distress messages
C
It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds duration
D
Distress messages should first be transmitted on 2182 kHz
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更多 “单选题Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?（）A If no answer is received on the designated distress frequencies，repeat the distress call on any frequency availableB Channel 16 (156.8) may be used for distress messagesC It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds durationD Distress messages should first be transmitted on 2182 kHz” 相关考题
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