在钻进过程中一旦发生井喷征兆,应迅速将钻具上提,使钻具接头避开防喷器芯子1m左右,立即提高钻井液(),加重压井。
A、粘度
B、切力
C、密度
D、pH值
参考答案:C
休克时反映生命器官血液灌流最简单、最可靠的指标是()
A.神志
B.肢体温度
C.血压
D.脉率
E.尿量
My daily school life is different from the past. I _____ lessons when I was a child. Now, I like them most. [ ]
A. get used to hating
B. used to hate
C. used to like
D. didn't use to hate