党在长期实践中形成的优良传统和（）也是十分重要的党内规矩。
A.工作惯例
B.优良作风
C.先进文化
参考答案：A
---It won’t take long to clean our school if all the students are willing to help.
---Yes, I think so. ________.
A．Too many cooks spoil the broth
B．Don’t put all your eggs in one basket
C．Many hands make light work
D．Every dog has its day
机械通气时潮气量的选择常用（）
A.5mL/kg
B.10mL/kg
C.15mL/kg
D.20mL/kg
E.25mL/kg
