单项选择题
A.without losing the rhythm of respiration B.only with the help of two other people C.by not stopping the respiration for more than 5 minutes D.at ten-minute intervals
An uncontrolled flow of gas，oil，or other well fluids in...
单项选择题An uncontrolled flow of gas，oil，or other well fluids into the atmosphere is called a（）.
A.Flow B.Breakout C.Kick D.Blowout
All the traces are（）old ones.A.ClearB.EvidentC.ObviousD...
单项选择题All the traces are（）old ones.
A.Clear B.Evident C.Obvious D.Apparently
A VESSEL，OTHER THAN A RESCUE UNIT，DESIGNATED TO CO-ORDI...
单项选择题A VESSEL，OTHER THAN A RESCUE UNIT，DESIGNATED TO CO-ORDINATE SURFACE SEARCH AND RESCUE OPERATION WITHIN A SPECIFIED AREA is known as（）.
A.Salving vessel B.Co-ordinator surface search C.MERSAR D.The vessel being salved
