TY - College Physics A1 - LI Rui-shan, ZHANG Pei-zeng, FENG You-cai T1 - Practice and introspection on the online teaching of college physics Y1 - 2021-01-07 JF - College Physics JO - College Physics SP - 48 EP - 50 VL - 40 IS - 01 UR - https://dxwl.bnu.edu.cn N1 - 10.16854 /j.cnki.1000-0712.200265 ER -