Funding for this research was provided by:
Graduate Teaching Reform Research Program of Chongqing Municipal Education Commission (YJG183074)
Chongqing Social Science Planning Project (2018YBSH085)
Major entrustment projects of the Chongqing Bureau of quality and technology supervision (CQZJZD2018001)
Article History
Received: 2 June 2019
Revised: 15 September 2019
Accepted: 30 October 2019
First Online: 10 February 2020