A.on
B.to
C.for
D.with
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A.to
B.on
C.of
D.for
A.off
B.reach
C.from
D.of
A.to
B.of
C.for
D.about
A.east two degrees
B.two degrees east
C.two east degrees
D.two-degrees east
A.astronomical observation
B.hydrographic survey
C.weather prediction
D.current sailing
最新試題
A tide is called diurnal when（）.
According to the relevant regulation, lifeboat should be powered by（）.
Bales close to the deckhead should be covered to prevent（）.
When steering by autopilot,how often should the steering be checked?（）
Which of the following shall not the officers in charge of the navigational watch do?（）
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（）.
What is it called when it is possible to ignite the vapour above the oil?（）
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
ECDIS must be able to perform all of the following EXCEPT（）.
In the Northern hemisphere northerly winds may cause temperature（）.