A.as soon as possible
B.prior to its publication
C.in advance of any possible accident
D.by means of other than airmails
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A.broadcast
B.broadcasted
C.are broadcast
D.are broadcasted
A.SafetyNET
B.NAVTEX
C.NAVAREA
D.VHF R/T
A.conduction fog
B.radiation fog
C.frontal fog
D.advection fog
A.active weather disturbances such as hurricanes or tropical storms
B.the latest navigational warnings
C.scheduled vessel arrivals and departures for a 24-hour period
D.water levels at river ports where run-off affects tidal heights
A.Overhead power lines
B.Louisiana-Mississippi ferry crossings
C.Two railroad trestles
D.Two submerged oil pipelines
最新試題
Navigational warnings and weather bulletins for shipping（）from Singapore Radio.
Steam smoke will occur when（）.
Which would influence a magnetic compass（）.
What is the significance of the broken magenta lines which roughly parallel the shore between Roanoke Point and Orient Point on Long Island（）.
Navigational warnings are published according to（）.
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（）.
The Daily Memorandum contains information on（）.
LOW AT 34N 135E ESLY SLWLY INTST NC．This description is most likely to be under the heading of（）.