Funding for this research was provided by:
National Natural Science Foundation of China (71704001)
Natural Science Foundation of Anhui Province (1808085QG224)
Humanities and Social Science Key Project of Anhui Provincial Education Department (SK2019A0075)
Planning Funds of Philosophy and Social Science of Anhui Province (AHSKY2018D13, AHSKQ2016D19)
Article History
Received: 17 September 2019
Accepted: 13 November 2019
First Online: 20 November 2019