新工人下井接受安全教育培训时间不于（）小时，并考试合格才行。
A.50
B.60
C.72
D.100
参考答案：C
Was __ at the air battle on June 8,1994, ____ was led by Captain Johnson ___ Peter lost his life?
A．it; when; that
B．that; that; who
C．it; which; that
D．it; which; when
被历史学家称为法国无产阶级在“19世纪的最后一次革命，19世纪法国革命史诗的顶点和终点”的是[ ]
A．巴黎公社革命
B．二月革命
C．里昂工人起义
D．六月起义
