A.varies
B.maintains
C.Shifts
D.assembles
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A.UK Hydrographic Office
B.IMO
C.International Hydrographic Organization
D.International Association of Classification society
A.Being mroe than 25 miles from shore
B.Only at night when it‟s dark
C.Being more than 6 miles from shore
D.Never
A.Advection
B.Radiation fog
C.frontal fog
D.Steam fog
A.speed
B.height
C.direction
D.course
A.lateral marks and cardinal marks
B.safe water marks
C.isolated danger marks and special marks
D.dangerous water marks
最新試題
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
In the Northern hemisphere northerly winds may cause temperature（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Berthing means bringing a vessel to her berth until（）.
Which of the following shall not the officers in charge of the navigational watch do?（）
Which of the following is not a form of precipitation?（）
A tide is called diurnal when（）.
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
Full details of all lights and fog signals are shown on（）.