A．network stations
- Anetwork stations
- Bnetwork clients
- Cnetwork devices
- Dnetwork servers
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1、A call between any two ship stations o
A call between any two ship stations on an intership working frequency shall have a maximum duration of（）.A2 minutesB3 minutesC4 minutesD5 minute
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2、Before（）,a station shall take precauti
Before（）,a station shall take precautions to ensure that its emission will not interfere with transmission already in progress.AtransmitBto transmittingCtransmittingDin transmitting
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3、A ship station on receiving a shore-to
A ship station on receiving a shore-to-ship distress alert should（）.Akeep silenceBinterfere with such communicationCestablish communication as dire...
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4、A lookout can leave his station（）.
A lookout can leave his station（）.Aat the end of the watchBat any timeCONLY when properly relievedD15 minutes before the end of the watch
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5、路网性编组站 network marshalling station
路网性编组站 network marshalling station
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6、How does a coast radio station communi
How does a coast radio station communicating by HF radio normally identify itself?（）ABy its subscriber numberBBy its call signCBy its MMSIDBy its MID