[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3fc1iQma8-P1guJTDh-kGsRBcd-rxibpfTGwv26E5Dg":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-08-30 21:36:06",95994361,[8,9,10,11],"行变列","列变行","二维表和一维表转换","首行和尾行互换",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},14,"9c78898267ac9deb93b01358de929647","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbd51842181620e77a3e8f728f7070bd0.png","财会大数据建模与可视化","9c3d4f4a7c0247119a34a197a20d4065","第6章测试","数据的透视和逆透视是Power Query中非常重要的功能,可以实现( )",[21,32,41,50,53,62,71,78,88,97],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],95994349,[25,26,27,28],"Power Pivot","Power Query","Power View","Power Map","Power BI Desktop进行数据整理时,需要打开( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],95994353,[36,37,38,39],"C","M","python","DAX","Power Query中通过鼠标进行的每一步操作,都会自动( )语言代码",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],95994357,[45,46,47,48],"cd","bcd","def","de","某数据表中的数据为"abcdefg",现要从该字符串中提取数据,起始索引3,字符数2,则提取的字符串为( )",{"answer":51,"createTime":5,"id":6,"options":52,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],95994364,[57,58,59,60],"3","4","5","6","合并查询时,表的链接方式有( )种",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],95994366,[66,67,68,69],"左反","左外部","右反","右外部","合并查询中,下图代表的标的的链接方式是( ). \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31e31a8fbc4c0499a8e16f8ff1a406ed.png\">",{"answer":72,"createTime":5,"id":73,"options":74,"question":77,"source":30,"type":31},[],95994368,[75,67,76,69],"完全外部","内部","表A的数据为"Brad,Steven,Tom",表B的数据为"Steven,Tom,James,Jack".合并查询后的结果为"Steven,Tom",请问表的链接方式是( )",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":30,"type":87},[],95994370,[82,83,84,85],"文件","数据库","联机服务","web网页","Power BI Desktop可以连接许多不同的数据源,具体包括( )",1,{"answer":89,"createTime":5,"id":90,"options":91,"question":96,"source":30,"type":87},[],95994371,[92,93,94,95],"Excel","文本","CSV","PPT","Power BI Desktop获取的文件格式包括具体包括( )",{"answer":98,"createTime":5,"id":99,"options":100,"question":105,"source":30,"type":87},[],95994372,[101,102,103,104],"删除最前面几行","删除最后几行","删除空行","删除重复项","查询编辑器中PowerQuery中行操作包括( )"]