Liu, Xianghu
Li, Yanfang
Liu, Yanmin
Funding for this research was provided by:
National Natural Science Foundation of China (71461027,71471158)
Zunyi Normal College Doctoral Scientific Research Fund (BS[2014]19)
Guizhou Province Mutual Fund (LH[2015]7002, LH[2015]7006)
Guizhou Province Department of Education Fund (KY[2014]295, KY[2015]391)
Guizhou Province Department of Education teaching reform project ([2015]337)
Guizhou Province Science and technology fund ([2016]1160,[2016]1161)