July 24，from the Sichuan Academy of Social Sciences、The "China's Fourth Polar World Urban Group -2019 Chengdu -Chongqing Economic Bet365 app download Zone Development Forum" jointly sponsored by Chongqing Academy of Social Sciences was held in Chengdu。From the Chinese Academy of Social Sciences、Chinese Academy of Sciences、Shanghai Academy of Social Sciences、Sichuan University、Chongqing University、Academy of Social Sciences、Experts and scholars from academic institutions such as Chongqing Social Sciences attended the meeting。