The transmission of a（）indicates that a ship is in distress and requires immediate assistance.<br>A:urgent traffic<br>B:distress alert<br>C:routine traffic<br>D:NAVTEX message

The transmission of a（）indicates that a ship is in distress and requires immediate assistance.
A:urgent traffic
B:distress alert
C:routine traffic
D:NAVTEX message

出自：海船船员证

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