Zhang Xuefeng is a famous educator and scientist. He graduated from Nanjing University with a doctorate. It should be noted that the "liberal arts student" here does not mean that Zhang Xuefeng is not good at logical thinking or mathematics and other related fields. In fact, when he is tutoring students, he will involve the knowledge points of various disciplines.

Educators not only teach their own professional knowledge, but also have interdisciplinary ability to meet the diverse needs of students. His research direction is condensed matter physics, a branch of physics. Therefore, judging from his educational background and professional field, Zhang Xuefeng is a science student, not a liberal arts student.

Although his research field is science, his love for education and science is not limited to science. He actively promoted the development of science education and devoted himself to improving the public's knowledge and understanding of science. His speech style is lively and interesting, and he can present complex scientific principles to the audience in an easy-to-understand way.

Zhang Xuefeng is a science student, but his influence and contribution are not confined to the field of science, but cross the boundaries of arts and sciences, making a very important contribution to the development of science education.

Zhang Xuefeng's contribution:

1. Education: Zhang Xuefeng is an outstanding educator who is committed to promoting the development of education. Through my own teaching experience and professional knowledge, I will provide students with high-quality educational resources to help them grow and develop better.

2. Scientific research: Zhang Xuefeng has also made outstanding contributions to scientific research. He has made outstanding achievements in condensed matter physics and made important contributions to the development of this field. His research results are not only recognized in academic circles, but also have a positive impact in practical application.

3. Social welfare: Zhang Xuefeng is enthusiastic about public welfare undertakings and actively contributes to society. Through his social influence, he advocated and promoted various public welfare activities, paid attention to the education and life problems of vulnerable groups, and made positive efforts to improve the social environment. Zhang Xuefeng's contribution covers many fields such as education, scientific research and social welfare, and his efforts and contributions have made important contributions to social progress and development.