A.falling
B.rising
C.constant
D.same
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A.rain
B.frost
C.sleet
D.snow
A.sea
B.current
C.tide
D.swell
A.above
B.below
C.equal to
D.uncertain
A.varies
B.maintains
C.Shifts
D.assembles
A.UK Hydrographic Office
B.IMO
C.International Hydrographic Organization
D.International Association of Classification society
最新試題
Manoeuvring information can not be obtained from（）.
What is it called when it is possible to ignite the vapour above the oil?（）
The ISM code is part of（）.
A tide is called diurnal when（）.
Fog is likely to occur when there is little difference between the dew point and the（）.
When steering by autopilot,how often should the steering be checked?（）
Which of the following is not a form of precipitation?（）
Which of the following shall not the officers in charge of the navigational watch do?（）
Shipboard Emergency Drills must be carried out at least（）on board cargo ship.
The loading of the ship must be done in accordance with（）.