The radiotelephone safety signal is（）. A: securite repeated 3 times B: safety repeated 3 times C: pan pan repeated 3 times D: securite securite repeated 3 time
The radiotelephone safety signal is（）. A: securite repeated 3 times B: safety repeated 3 times C: pan pan repeated 3 times D: securite securite repeated 3 time
无线电话遇险信号由____组成 A: PANPAN B: SOS C: MAYDAY D: SECURITE
无线电话遇险信号由____组成 A: PANPAN B: SOS C: MAYDAY D: SECURITE
无线电话遇险信号是___。 A: PAN PAN B: MAYDAY C: URGENCY D: SECURITE
无线电话遇险信号是___。 A: PAN PAN B: MAYDAY C: URGENCY D: SECURITE
在GMDSS中,无线电话的遇险信号是由____组成。 A: SECURITE B: PANPAN C: MAYDAY D: SOS
在GMDSS中,无线电话的遇险信号是由____组成。 A: SECURITE B: PANPAN C: MAYDAY D: SOS
When you are calling a station for medical assistance. your call should be preceded by A: SOS B: SECURITE C: MAYDAY D: PANPAN Medical
When you are calling a station for medical assistance. your call should be preceded by A: SOS B: SECURITE C: MAYDAY D: PANPAN Medical
Which of the following is true? A: MAYDAY is to announce a safety message. B: MAYDAY is to announce a distress message. C: PANPAN is to announce a distress message. D: SECURITE is to announce a distress message.
Which of the following is true? A: MAYDAY is to announce a safety message. B: MAYDAY is to announce a distress message. C: PANPAN is to announce a distress message. D: SECURITE is to announce a distress message.
用无线电话方式进行遇险通信时,各个呼叫前应冠有遇险信号（） A: MAYDAY B: SOS C: SECURITE D: PANPAN
用无线电话方式进行遇险通信时,各个呼叫前应冠有遇险信号（） A: MAYDAY B: SOS C: SECURITE D: PANPAN