It works. Zhonggong Education, an information technology and education service institution founded by Peking University graduates, has now developed into a comprehensive enterprise group in the education service industry and a large-scale knowledge industry entity integrating face-to-face teaching and training, online school distance education, publishing and distributing books, teaching materials and audio-visual products. 2022 123 15 "Consumer Complaint Hotline" is a special telephone number set up nationwide by the State Administration for Industry and Commerce with the strong support of the former Ministry of Information Industry. In 2022, when one's rights and interests are hurt, public education is useful.