隧道施工方法中,( )的基本原则是“少扰动、早喷锚、勤量测、紧封闭”。
A. 新奥法
B. 盾构法
C. 明挖法
D. 盖挖法
二级公路路堤基底的压实度应不小于( )。
A. 80%
B. 85%
C. 90%
D. 95%
口服巴比妥类药物中毒洗胃液应选择 ( )。
A. 5%醋酸
B. 0.1%硫酸铜
C. 2%一4%碳酸氢钠
D. 10%硫酸镁
E. 1:15000~1:20000高锰酸钾
We can learn from the passage that ______.
A. unfairness exists in salary increases
B. most people are overworked and underpaid
C. one should avoid overstating one's performance
D. most organizations give their staff automatic pay raises