The series of valves used to control the return flow in well control operations is called the（）.<br>A:valve assembly<br>B:standpipe manifold<br>C:accumulator manifold<br>D:choke manifold

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

出自：海船船员证

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