A.Ocean Passages for the World
B.Symbols and Abbreviations used on Admiralty Charts，Chart 5011
C.IALA Maritime Buoyage System
D.The Mariners Handbook
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A.pulling a submarine cable
B.engaged in diving operations
C.engaged in underway replenishment
D.transferring explosives
A.the estimated cost of damage to the unit
B.an evaluation of who was at fault
C.the amount of ballast on board
D.the name of the owner or agent of the unit
A.Commandant of the Coast Guard
B.Owner of the unit
C.Nearest Coast Guard Marine Safety Office
D.Captain of the nearest port
A.the centerline of a navigable channel
B.the starboard side of a channel
C.a prominent object of navigational interest that has no lateral significance
D.an area of a channel where passing another vessel is permitted
A.heavy rain within six hours
B.a decrease in wind velocity
C.a change in the present weather conditions
D.that fog will soon set in
最新試題
The program of graphical predictions of height against time for a period of up to seven consecutive days is contained in（）.
Light Lists for coastal waters are（）.
Many of the lights on this coast are placed so high as to be frequently obscured by（）.
An orange flag showing a black circle and square is a（）.
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
The international number，location and/or name，geographical co-ordinates，characteristics and intensity，elevation in metres，range in sea miles and description of structure of a light can be found in（）.
The Lists of Meteorological Observation Stations can be found in（）.
A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.
Lines drawn through points on the Earth having the same atmospheric pressure are known as （）.
Mean high water is the average height of（）.