Biotechnology R&D; Computer software development; Medical device operations; Conference services; Advertising Business; Business Information Consulting; Market Research; Network engineering installation; Integrated wiring; Medical equipment leasing; Building decoration and decoration engineering; Mechanical and electrical equipment installation engineering; Health Information Consultation( No disease diagnosis、 Therapeutic activities、 psychological counseling); medical devices、 Maintenance of computer hardware and software、 Technical Services、 Technical consultation and after-sales service; Food sales; Sale: Disinfection supplies, Daily necessities, office supplies, Daily chemicals( Except for hazardous chemicals), Electronic computers and accessories, Communication equipment, Office machinery, Digital products and accessories, Computer network equipment and accessories, Instruments, Laboratory equipment, air conditioner,refrigerator; Import and export of goods or technology( Except for the import and export of goods and technologies that are prohibited by the state or involve administrative approval)。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)