用测井连井资料进行砂组及油组对比，可以预测油藏范围。（）
参考答案：错
As soon as they arrived in the big city, they found it difficult to find somewhere cheap __________.[ ]
A. to live
B. to live in
C. to live on
D. living
管路系统的特性曲线是随着（）的增加而上升。
A、流量
B、扬程
C、轴功率
D、效率
