Paint the tissue. More formal training institutions with three supports and one support include Zhonggong and Tuhua. Among them, Tuhua Online School is the top training institution in China and belongs to the top of the pyramid. A large number of textbook editors are the signboard of the "Three Supports and One Support" course in Tuhua Online School. This institution has a high probability of taking the senior high school entrance examination every year and has a good reputation among the three candidates.