It is unreasonable to substitute classes, so be careful that the platform finds anomalies. Report it and be blocked.

Online course is an online course that uses electronic equipment to learn knowledge and skills through the Internet. Online classroom is a new way of learning, and its contents include video, pictures, text interaction and other forms. In 2020, faced with the complicated and severe epidemic situation in COVID-19, the Ministry of Education requested to open online quality education resources, and online classroom became the new normal of teaching under the epidemic prevention and control situation.