A.at anchor
B.being towed
C.aground
D.drilling
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A.When the towing vessel enters the fog
B.When the drilling rig enters the fog
C.When the towing vessel can no longer be seen from the rig
D.Immediately
A.under tow
B.fixed to the seabed
C.underway
D.All of the above
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
最新試題
The daily predictions of the times and heights of high and low water for a selection of Standard Ports are given in（）.
Lines drawn through points on the Earth having the same atmospheric pressure are known as （）.
An inflatable liferaft should be manually released from its cradle by（）.
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
An orange flag showing a black circle and square is a（）.
Many of the lights on this coast are placed so high as to be frequently obscured 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（）.
The information on（）is not likely found in The Mariners Handbook.
Mean high water is the average height of（）.
After being rescued from the vessel accident，the people agreed that they had much to（）.