Funding for this research was provided by:
National Office for Philosophy and Social Science (20BTJ027)
China National Funds for Distinguished Young Scientists (11901508)
Article History
Received: 13 October 2020
Accepted: 3 March 2021
First Online: 13 March 2021
Declarations
:
: · The manuscript was not submitted to more than one journal for simultaneous consideration.· The submitted work is original and has not been published elsewhere in any form or language (partially or in full).·This study has not been split up into several parts to increase the quantity of submissions and submitted to various journals or to one journal over time.·No data, text, or theories by others are presented as if they were the authors’ own (“plagiarism”). Proper acknowledgements to other works are given (this includes material that is closely copied (near verbatim), summarized, and/or paraphrased), quotation marks (to indicate words taken from another source) are used for verbatim copying of material, and permissions secured for material that is copyrighted.
: Yes.
: Yes.
: The authors declare not competing interests.
: National Office for Philosophy and Social Science (20BTJ027); National Natural Science Foundation of China (11901508).
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