A.at
B.in
C.by
D.from
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A.by grade
B.by a grade
C.by the grade
D.by the grades
A.in
B.as
C.to
D.with
A.in
B.up
C.above
D.on
A.by
B.with
C.on
D.in
A.one natutical mile
B.2 kilometers
C.5 cables only
D.one fathom
最新試題
Before any loading takes place any signs of the previous cargo should do（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
What is a CORRECT reply to a pilot’s request, How’s your heading?（）
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
The dew point temperature is（）.
Full details of all lights and fog signals are shown on（）.
When steering by autopilot,how often should the steering be checked?（）
ECDIS must be able to perform all of the following EXCEPT（）.