单选题There is a drilling rig established（）position 24.1E 25.2N.AatBonCinDabove
单选题
There is a drilling rig established（）position 24.1E 25.2N.
A
at
B
on
C
in
D
above
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grammar practice is usually divided into two categories, _______________. A. meaningful drilling and communicative drillingB. mechanical drilling and meaningful drillingC. mechanical practice and meaningful practiceD. meaningful practice and communicative practice
grammar pratice is usually dividied into two categories:_________________. A、mechanical drilling and meaningful drillingB、mechanical practice and meaningful practiceC、meaningful drilling and communcative drillingD、meaningful practice and communicative practice
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单选题A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started? （）AWhen the towing vessel enters the fogBWhen the drilling rig enters the fogCWhen the towing vessel can no longer be seen from the rigDImmediately
单选题MV SUDAN/MEAN AT 0200UTC IN POSITION 40.44N 141.52E PASSED A DERELICT ABOUT 40 TONS HALF SUBMERGED AND IS DRIFTING. This cable says that she met with possibly（）.Aa floating wreckBa survivor at seaCa man who had fallen overboardDa drilling rig
单选题A heavy steel device that is set on the sea floor and used as a drilling template in offshore drilling operations is called a（）.Atemporary guide baseBpermanent guide baseCguide frameDfoundation template
单选题When a marine surveyor is employed to assist in the move of a mobile offshore drilling unit，he（）.Abecomes responsible for the safe movement of the rigBrelieves the Offshore Installation Manager at the moment the rig is free from the bottomCmust be designated as the person in charge of the rigDis a specialist who is hired to provide advice and guidance on aspects of the move
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单选题A jack-up drilling rig being towed must（）.Aturn off all lights that interfere with the navigation lightsBturn on all available working lights on deckCring the bell rapidly for five seconds once a minuteDdisplay two black diamonds in a vertical line during the day
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单选题There is a drilling rig established（）position 24.1E 25.2N.AatBonCinDabove