You are using VHF channel 16 (156.8 MHz) or 2182 KHz. You need help but are not in danger. You should use the urgent signal ______.A.ASSISTANCE NEEDEDB.PAN-PANC.MAYDAYD.SECURITE
You are using VHF channel 16 (156.8 MHz) or 2182 KHz. You need help but are not in danger. You should use the urgent signal ______.
A.ASSISTANCE NEEDED
B.PAN-PAN
C.MAYDAY
D.SECURITE
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May I take this book out of the reading room? No,you . You read it in here. ( )A. mightn’tB. won’tC. need’tD. mustn’t
在GMDSS中救生艇至少应配备_____。A.救生艇电台,手持式VHF双向无线电话(包括 16CH 及另1-2个VHF频道),SARTB.2182KHz收发信机,无线电测向仪,手持式VHF双向无线电话(包括 16CH及另1-2个VHF频道),SARTC.2182KHz收发信机,S-EPIRB,VHF双向无线电话(包括 16CH 及另1-2个 VHF频道) 和SARTD.手持VHF双向无线电话和SART
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