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 ranks among the "world-class universities and disciplines", "2 1 1 Project" and "985 Project", and is selected into "201Plan", "Everest Plan" and "6544".