单项选择题
A.National Geospatial-Intelligence Agency B.Coast Guard C.Naval Observatory D.National Ocean Service
Chart legends which indicate a conspicuous landmark are...
单项选择题Chart legends which indicate a conspicuous landmark are printed in（）.
A.underlined letters B.capital letters C.italics D.boldface print
Chart legends printed in capital letters show that the ...
单项选择题Chart legends printed in capital letters show that the associated landmark is（）.
A.inconspicuous B.conspicuous C.a government facility or station D.a radio transmitter
Channel 13 is primarily used for ship to ship communica...
单项选择题Channel 13 is primarily used for ship to ship communication. Channel 13 is also authorized for（）.
A.coast to aircraft operational communications B.aircraft to ship operational communications C.lock & bridge communications D.aircraft to ship navigational communications
