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Authors
Xu, Baicui
Pan, Jinghu
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (41661025)
Research Capacity Promotion Program for Young Teachers of Northwest Normal University (NWNU-LKQN-16-7)
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Article History
Received: 2 January 2020
Accepted: 2 March 2020
First Online: 13 March 2020
