A.watch
B.to watch
C.watching
D.watched
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A.to cross
B.cross
C.crossing
D.to crossing
A.at
B.for
C.in
D.on
A.with
B.to
C.for
D.of
A.at obscured objects
B.forward submerged targets
C.up exposed targets
D.for unseen objects
A.to be sailing
B.sailing
C.sail
D.to sail
最新試題
Bales close to the deckhead should be covered to prevent（）.
The loading of the ship must be done in accordance with（）.
It is dangerous for vessels without the operational radar（）the estuary.
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（）.
Berthing means bringing a vessel to her berth until（）.
What is it called when it is possible to ignite the vapour above the oil?（）
Which of the following is not a form of precipitation?（）
The dew point temperature is（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Before any loading takes place any signs of the previous cargo should do（）.