The old captain Jie Ge is a chemistry teacher of the college entrance examination, majoring in chemistry in Tsinghua University, and the best-selling teaching assistant editorial board of the college entrance examination. After more than ten years of teaching, the course is comprehensive, meticulous and humorous.

Tsinghua University is a national key university directly under the Ministry of Education and the Central Government of People's Republic of China (PRC). It was rated as "World-class University and First-class Discipline", "21Project" and "985 Project", and was selected as "201Plan", "Everest Plan" and ".