单选题The series of valves used to control the return flow in well control operations is called the（）.Avalve assemblyBstandpipe manifoldCaccumulator manifoldDchoke manifold
单选题
The series of valves used to control the return flow in well control operations is called the（）.
A
valve assembly
B
standpipe manifold
C
accumulator manifold
D
choke manifold
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