1. According to Sohu's query. Tik Tok's Tsinghua Yongfu brother is real, while Tsinghua Yongfu brother's original name is Zhang Yongfu. Graduated from the Department of Mathematics of Tsinghua University in 2009, majoring in basic science of mathematics and physics. The math score of the college entrance examination 149, the champion of comprehensive science in Quanzhou City, Fujian Province, and the second prize of the national high school math league. 20 18 served as the head of mathematics in qingbei online school, the mathematics thinking coach in primary school and the mathematics teacher in online high school, and devoted himself to the research of mathematics teaching and quality improvement.

2. Tsinghua University, abbreviated as "Tsinghua", located in Haidian District, is a national key university directly under the Ministry of Education of People's Republic of China (PRC). It ranks among the national "Double First Class", "985 Project" and "21/project" and is selected as "201/plan". As a member of Nine Schools Alliance (C9), Song Lian Alliance, China University Presidents Association, Asian University Alliance, Pacific Rim University Alliance, China-Russia Comprehensive University Alliance and Tsinghua-Cambridge-MIT Low-carbon University Alliance, China is known as the "cradle of red engineers".