A.A storm surge
B.A high pressure area
C.The jet stream
D.A cold front
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A.Extremely cold air from shore passes over warmer water
B.Warm dry air from shore passes over cooler water
C.Cold ocean water evaporates into warm air
D.Cool rain passes through a warm air mass
A.Reprints of Radio Navigational Warnings
B.Amendments to Admiralty Sailing Directions
C.Amendments to Admiralty Lists of Lights and Fog Signals
D.Amendments to Admiralty List of Radio Signals
A.Chart Number only
B.Chart Number + Previous NM Number/Year
C.Chart Number + Between Previous and Present Dates
D.Cumulative Number
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
最新試題
For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?（）
In revised editions of Admiralty charts the（）are corrected first．
The fog most commonly encountered at sea is called（）.
The charts show two dashed lines crossing the river justsouth of St. Catherine Bar Light. What does this indicate? （）
Which is a weekly publication advising mariners of important matters affecting navigational safety（）.
Weekly NMs are available without subscription from appointed（）.
Vessels should not anchor or trawl in the vicinity of pipelines and are（）in the pipeline area shown on the chart.
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（）.
Many navigational warnings are of a temporary nature，but others remain in force for several months or may be succeeded by（）.
On the approach of a warm front the barometric pressure usually（）.