最适合垂直裂缝储层的完井方法是()或割缝尾管完井方法。
A. 射孔完井法
B. 裸眼完井法
C. 预制封隔器尾管完井法
D. 预制砾石充填完井法
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The most obvious characteristics of the Communicative Approach is that almost everything that is done is done with a communicative intent.()
A. 正确
B. 错误
心肺复苏时,心脏按压与口对口人工呼吸的比例是()
A. 4:1
B. 5:1
C. 6:1
D. 7:1
E. 30:2