1. School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China;
2. Shenzhen Senior High School, Shenzhen 518040, China;
3. Northwestern Polytechnical University Center for Faculty Development, Xi'an 710072, China;
4. Shanxi Normal University Branch, Collaborative Innovation Center of Assessment toward Basic Education Quality at Beijing Normal University, Xi'an 710062, China