According to today's headline inquiry, Zhonggong Education Group was established in 1999. After a period of painstaking development, Chinese public education has been established by the information technology and education service institutions of Peking University graduates. They hired Mr. Li as a lecturer and set up a Chinese public lecture hall to explain the relevant knowledge points of major exams and share exam skills. Teacher Li's explanation of common sense in the lecture hall of Zhonggong includes politics, history, geography, literature, art and many other fields.

Li Yisheng's interesting teaching methods, careful and in-depth analysis, close to the case analysis of each examination subject, let each student easily understand and master the knowledge points, and improve the answering skills and scoring rate. His explanation of common sense in zhonggong lecture hall was well received, and all the students liked and appreciated it.