A.off
B.reach
C.from
D.of
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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
A.ahead
B.astern
C.alongside my port bow
D.alongside my starboard bow
A.in
B.on
C.at
D.for
最新試題
It is dangerous for vessels without the operational radar（）the estuary.
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Bales close to the deckhead should be covered to prevent（）.
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
According to the relevant regulation, lifeboat should be powered by（）.
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（）.
Which of the following is not a form of precipitation?（）
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
A tide is called diurnal when（）.