The registration address of beijing one-teacher science and technology ltd. Is located in room 103 (cluster registration) in building 1 of the goose habitat road 33 in the huairou economic development area, beijing. The registration authority is the market supervision authority of the huairou district of beijing, represented by legal persons and including technological development; technical services; sale of radio and video equipment, computers, software and assistive equipment, electronics, multimedia teaching equipment, office equipment, crafts; enterprise image planning; design, production, agency, advertising; computer system integration; business administration; conference services; software development; economic trade consultancy; engineering design; professional contracting; engineering; radio and television production; and internet cultural activities. (the subjects of the market may, in accordance with the law, freely choose to operate projects and carry out business activities; the design of works, the production of radio and television programmes, the performance of cultural activities on the internet and projects subject to legal authorization, and shall, with the approval of the relevant authorities, carry out business activities in accordance with the approved content; and may not engage in activities in which the state and municipal industrial policies prohibit and restrict the operation of such projects