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
On an Atlantic Ocean voyage from New York to Durban，South Africa，you should expect the Agulhas Current to present a strong（）.
Admiralty EasyTide（）.
An inflatable liferaft is hand-launched by（）.
Mean high water is the average height of（）.
The latest known details of lights are given in（）.
To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
After launching，an inflatable raft should be kept dry inside by（）.
The international number，location and/or name，geographical co-ordinates，characteristics and intensity，elevation in metres，range in sea miles and description of structure of a light can be found in（）.
A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.
Aboard a survival craft，ether can be used to（）.