单项选择题
A.1~3 B.8~10 C.0.5~0.9 D.6~8mm
A.清洗油管 B.测套管外径 C.判断井内套管状况 D.测套管接箍
A.114~118 B.119~128 C.136~148 D.146~158
A.92~95 B.102~107 C.114~118 D.119~128
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