相关题目
" A radio medical advice service () ships of all nationalities and no charge is made for this service.
" A DECK, SPACE, AREA, ETC. , NOT PERMITTED TO BE ENTERED FOR SAFETY REASONS defines().
"A dead reckoning (DR) plot ().
" A continual worsening of the list or trim(吃水差) indicates().
"()is an angle at which a cargo settles in the hold of a ship，between the horizontal and the slope made by a bulk cargo such as grain or iron ore.
"()is the most visible signal of distress from a lifeboat at sea in the daytime.
"The generators on your rig have shut down，leaving you without navigation lights. Which emergency signal would you transmit over the VHF radio to alert vessels in the area of your predicament? ()
"A mark or place at which a vessel comes under obligatory entry，transit，or escort procedure is know as().
"The Class A EPIRB transmits a signal ().
"If a GMDSS radio operator initiates a DSC distress transmission but does not insert a message，what happens?
