1. Social science: social problems research, political and economic analysis, culture and media research, legal issues discussion, education reform research, etc.
2. Natural science: basic research or applied research in the fields of physics, chemistry, mathematics, biology and geology, such as new material research, energy conversion technology and environmental protection technology.
3. Engineering technology: design, manufacturing, management and application research in the fields of machinery, electronics, information, architecture and transportation, such as intelligent manufacturing, artificial intelligence, urban planning and transportation network optimization.
4. Medical and health: research in clinical medicine, drug research and development, public health, nutrition and food safety, such as cancer treatment, vaccine research and development, health management, etc.
5. Art design: creation, performance, design and theoretical research in the fields of music, art, drama, animation and graphic design, such as music creation, architectural design and film and television production.
In a word, the choice of thesis topics should be considered according to one's own interests and abilities, and at the same time, we should pay attention to the hot issues and future development direction of the subject, so as to choose a meaningful and feasible research direction.