Funding for this research was provided by:
National Natural Science Foundation of China (11701043)
the Science and Technology Program of Jilin Educational Department during the 13th Five-Year Plan Period (JJKH20191299KJ)
a scholarship from the China Scholarship Council (201808220176)
State Key Program of National Natural Science Foundation of China (71331006)
State Key Program in the Major Research Plan of National Natural Science Foundation of China (91546202)
Article History
Received: 30 December 2017
Accepted: 22 April 2019
First Online: 7 May 2019