共同价值观诠释了烟草人的原则、立场和行为取向，是行业提高效率、注重自律的（）
A.行为保障
B.人生信条
C.政策引领
D.思想基础
参考答案：D
单侧壁导坑法，侧壁导坑宽度一般不宜超过()倍洞宽。
A.1/3
B.2/5
C.1/2
D.2/3
As a famous public figure, you have a duty to _________ yourself responsibly, especially in public places.
A．carry
B．conduct
C．guide
D．operate
