【多选题】有下列情况之一的,由发证单位吊销其特种作业操作证()
B.
违章操作造成严重后果或2年内违章操作记录达3次以上的
【简答题】Now that newsrooms are becoming less popular in the US , young people have begun to tell their own stories. GlobalGirl Media , a nonprofit organization that teaches age girls digital storytelling...
【单选题】用各组的组中值代表其实际数据计算算术平均数时,通常假定( )。
【单选题】违章操作造成严重后果或2年内违章操作记录达()以上的特种作业人员将被发证单位吊销其特种作业操作证。
【简答题】Now that newsrooms are becoming less popular in the US , young people have begun to tell their own stories. GlobalGirl Media , a nonprofit organization that teaches age girls digital storytelling...
【单选题】用各组的组中值代表其实际数据计算算术平均数时,通常假定()