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单选题
After casting off moorings at a mooring buoy in calm weather，you should（）.
A
go full ahead on the engine(s)
B
back away a few lengths to clear the buoy and then go ahead on the engines
C
go half ahead on the engines and put the rudder hard right
D
go half ahead on the engines and pass upstream of the buoy
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After casting off moorings at a mooring buoy in calm weather，you should______．A.go full ahead on the engine(s)B.back away a few lengths to clear the buoy and then go ahead on the enginesC.go half ahead on the engines and put the rudder hard rightD.go half ahead on the engines and pass upstream of the buoy
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