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
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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
A.poor fix
B.good fix
C.poor signal quality
D.good signal quality
A.on an even keel
B.listing about 1° to the side the light is displayed on
C.listing over 5° With the light displayed on the high side
D.listing，and the chutes should be directed to the side where the light is displayed
最新試題
After being rescued from the vessel accident，the people agreed that they had much to（）.
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
Of the following，（）is not likely found in The Mariners Handbook.
An inflatable liferaft is hand-launched by（）.
For details of these and other lights the larger scale charts and Admiralty Lists should be （）.
Mariners not entering the port are（）to keep at least one mile off.
What is the use of the books of Admiralty List of Lights and Fog Signals? Their use is to （）.
The light vessel is reported（）.
Aboard a survival craft，ether can be used to（）.
Lines drawn through points on the Earth having the same atmospheric pressure are known as （）.