A.good towing ground
B.good holding ground
C.good grabbing ground
D.good dragging ground
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A.breaking the chain reaction
B.smothering the fire
C.cooling the fire
D.coating the fule with a nonflammable surface
A.cooling
B.smothering
C.shielding of radiant heat
D.breaking the chain reaction
A.directly on flames
B.at room temperature
C.in an extremely cold climate
D.None of the above
A.to right the raft if it capsizes
B.to carry the raft around on deck
C.for crewmen to hang on to
D.to hang the raft for drying
A.more
B.not so much
C.rather
D.not shch
最新試題
In the Northern hemisphere northerly winds may cause temperature（）.
A tide is called diurnal when（）.
ECDIS must be able to perform all of the following EXCEPT（）.
According to the relevant regulation, lifeboat should be powered by（）.
The dew point temperature is（）.
The ISM code is part of（）.
Before any loading takes place any signs of the previous cargo should do（）.
（）is on the panel of radar.
When the wave period and the apparent rolling period are the same（）.
It is dangerous for vessels without the operational radar（）the estuary.