Funding for this research was provided by:
the National Social Science Foundation of China (20BGL136)
Article History
Accepted: 18 August 2022
First Online: 1 September 2022
Declarations
:
: Since the study did not include information about the respondents, it is not necessary to obtain consent.
: No conflict of interest exits in the submission of this manuscript, and manuscript is approved by all authors for publication. I would like to declare on behalf of my co-authors that the work described was original research that has not been published previously, and not under consideration for publication elsewhere, in whole or in part. All the authors listed have approved the manuscript that is enclosed.