Peng, Sen
Wu, Mengqiang
Xu, Jianming
Huang, Tongcheng
Luo, Gaofeng
Yu, Jiankun
Zhou, Jianhua
Funding for this research was provided by:
Scientific Research Fund of Hunan Provincial Education Department (14A129, 13A091, 14C1013, 07C681)
Education Reform Project of Hunan Provincial Education Department (247 [2014)
The project of the Hunan Provincial Planning of Educational Research (XJK014BGD073)
The project of Hunan Natural Science Foundation (15JJ2130, 14JJ7075)