A.Notices to Mariners
B.Sailing Directions
C.List of Lights and Signals
D.Guide to Port Entries
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A.GL WNG
B.GEN SYN
C.STM WNG
D.TY WNG
A.GALE WARNING
B.24 HOURS FORECAST
C.GENERAL SITUATION
D.TROPICAL CYCLONE WARNING
A.Notice to Mariners
B.Coast Pilots
C.nautical chart catalogs
D.Sailing Directions
A.smaller scales
B.larger scales
C.smaller scales and larger scales
D.moderate scales
A.Mercator charts／Loran charts
B.Admiralty charts／Routeing charts
C.large scale charts／small scale charts
D.small scale charts／large scale charts
最新試題
（）is the system for the broadcast and automatic reception of maritime safety information by means of narrow-band direct-printing telegraphy.
Navigational warnings and weather bulletins for shipping（）from Singapore Radio.
Weekly NMs are available without subscription from appointed（）.
Periodic publications notifying changes in，or additions to，previously published navigational data are（）.
LOW AT 34N 135E ESLY SLWLY INTST NC．This description is most likely to be under the heading of（）.
What is the most important source of information to be used in correcting charts and keeping them up to date（）.
LOW ABOUT 300 MILES SOUTHWEST OF LISBON 1004 MOVING SLWLY SOUTHEAST COMMA FILLING 1006 BY MIDNIGHT.This phrase is likely to be under the heading of（）.
RYUKYU S TO SE 6 BEC 4－5.ISOL SHWRS.SEA 3 M BEC 2 M.SWELL SE 3－4M.This description is likely to be under the heading of（）.
On a nautical chart，the inner ring of a compass rose indicates（）.
What is the significance of the broken magenta lines which roughly parallel the shore between Roanoke Point and Orient Point on Long Island（）.