1, Mechanics: Mechanics is one of the most difficult majors in the postgraduate entrance examination and re-examination of Beihang University. This is because the mechanics major involves a wide range of knowledge and strong theory, which requires candidates to have a solid foundation in mathematics and physics. The postgraduate entrance examination for this major is difficult, which requires candidates to have high problem-solving ability and analytical ability.
2. Instrument Science and Technology: One of the most difficult majors of Beihang University is instrument science and technology, which involves a wide range of knowledge, including optics, electronics, computers and other fields, and requires high comprehensive quality and professional skills of candidates.
3. Material Science and Engineering: Material Science and Engineering is one of the most difficult majors in the postgraduate entrance examination and re-examination of Beihang University, which involves a wide range of knowledge, including the structure, performance and preparation technology of materials, and requires high comprehensive quality and professional skills of candidates.