ZHANG Xiao-Li1, LIU Zhi-Qiang2, WANG Xiao-Hua3, WANG Hou-Xiong4
1. Zhongshan Overseas Chinese Secondary School, Zhongshan 528400, China;
2. Sun Yat-Sea Memorial Secondary School, Zhongshan 528454, China;
3. Xunwu No.2 Middle School, Xunwu 342200, China;
4. Chemistry Education Research Institute, Central China Normal University, Wuhan 430079, China