Funding for this research was provided by:
The Ministry of education of Humanities and Social Science project (18YJCZH029)
Social Science Foundation of Hubei Province (2019055)
The Special Project for Technological Innovation of Hubei Province (2019ADC133, 2018ADC164)
Article History
Received: 20 May 2020
Accepted: 10 August 2020
First Online: 21 August 2020
Free to read: This content has been made available to all.