A.under tow
B.fixed to the seabed
C.underway
D.All of the above
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A.destination
B.answer
C.time
D.ending
A.The motion of the apparent sun is along the ecliptic
B.Measurement of time is along the celestial equator
C.The speed of the Earth's revolution is not constant
D.There are variations in the Earth's rotational speed
A.Mine Safety Appliance Association
B.American Chemical Society
C.Marine Chemists Association
D.National Fire Protection Association
A.can be absorbed through the skin
B.causes irreversible damage to eye tissue
C.is a very unstable product
D.All of the above
A.dump valve
B.deflector
C.separator
D.diverter
最新試題
Many of the lights on this coast are placed so high as to be frequently obscured by（）.
Of the following，（）is not likely found in The Mariners Handbook.
Mean high water is the average height of（）.
After launching，an inflatable raft should be kept dry inside by（）.
After being rescued from the vessel accident，the people agreed that they had much to（）.
Aboard a survival craft，ether can be used to（）.
An inflatable liferaft should be manually released from its cradle by（）.
The information on ocean voyage planning with routeing details for powered and sailing vessels is likely found in（）.
Mariners not entering the port are（）to keep at least one mile off.
The light vessel is reported（）.