[{"title":"( 4 个子文件 8.17MB ) 【最全】地级市数据集(2006-2019),地级市专利数据,常用控制变量以及城市三废数据、产业高级化产业,合理化数据\n","children":[{"title":"各市专利获得情况2002-2019.xlsx <span style='color:#111;'> 216.89KB </span>","children":null,"spread":false},{"title":"常用控制变量真的汇总.xlsx <span style='color:#111;'> 930.53KB </span>","children":null,"spread":false},{"title":"06到19年产业结构合理化,高级化.xlsx <span style='color:#111;'> 2.11MB </span>","children":null,"spread":false},{"title":"1994-2019年地级市面板数据.xlsx <span style='color:#111;'> 5.07MB </span>","children":null,"spread":false}],"spread":true}]