Exploration and Practice of On-Line Teaching Based on the Combination of "SPOC + MOOC Class + Tencent Meeting + WeChat Group": Taking Instrumental Analysis Course as an Example
Jin Zhang, Li Liu, Sitong Yao, Yuhang Zhang
University Chemistry . 2021, (4): 2005059 -0 .  DOI: 10.3866/PKU.DXHX202005059