A.Chart Number only
B.Chart Number + Previous NM Number/Year
C.Chart Number + Between Previous and Present Dates
D.Cumulative Number
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A.as soon as possible
B.prior to its publication
C.in advance of any possible accident
D.by means of other than airmails
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
最新試題
Which would influence a magnetic compass（）.
On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a（）.
Why is a warning sign displayed at the gangway or access point of a barge during cargo transfer（）.
Steam smoke will occur when（）.
Which is a weekly publication advising mariners of important matters affecting navigational safety（）.
The broken magenta line which runs parallel to the shorebetween Roanoke Point and Mattituck Inlet marks a（）.
The best estimate of the wind direction at sea level can be obtained from observing the direction of the（）.
Which is the correct procedure for anchoring a small to medium size vessel in deep water （）.
Steam smoke will occur when（）.
In revised editions of Admiralty charts the（）are corrected first．