针对某一时期的煤矿安全工作重点，组织______。
A．日常监察 B．专项监察C．重点监察 D．定期监察
参考答案：B
What ________ talked about when the teacher came into the classroom? [ ]
A. did they
B. have they
C. was being
D. were they
现代社会保障制度的萌芽以哪一个国家所颁布的《济贫法》为标志（）
A.英国
B.德国
C.美国
D.日本
