1, science and technology: such as software development, Internet, artificial intelligence, blockchain, etc.
2. Retail category: such as online retail, offline retail and e-commerce.
3. Catering: such as catering service and food processing.
3. Education: such as online education, vocational training and language learning.
4. Medical treatment: such as medical equipment, medical services, biotechnology, etc.
5. Entertainment: such as games, movies and music.
6. Investment categories: such as venture capital, private equity, hedge funds, etc.