劳动卫生法规是
A．生产过程管理条例B．降低生产成本的依据C．保障工人安全生产的管理依据D．安全劳动的规范E．日常行为准则
参考答案：C
— You must have your work done within 2 days.
— Finishing a task in such short time is a (an) _____. [ ]
A. conclusion
B. challenge
C. explanation
D. approach
既能和解退热、又能升阳举陷的药物是（）
A.葛根
B.柴胡
C.黄芪
D.银柴胡
E.青蒿
