After the courseware is collected for free, they will sell you other products step by step, such as the video version of the courseware and auxiliary teaching materials. These are all the money they want to earn.

Every year, tens of thousands of people take various exams, such as architect qualification certificate, psychological consultant qualification certificate, teacher qualification certificate, financial planner, enterprise trainer, postgraduate entrance examination and so on. There are also academic qualifications and public examinations, such as adult college entrance examination, national civil service examination, and political and legal police examination. This has created a market for selling examination materials and laid the foundation for this online earning project. Where there is demand, there is market. Some students may ask, the school has issued a lot of examination materials, there are many examination groups, and there are not a few free materials.