No confession. According to the national education network, the schools of the Seventh National Defense School only recruit new students, not repeat students. The Seventh National Defense School, also known as the Seventh National Defense School or the Seventh National Defense School, refers to the national defense industrial colleges managed by the National Defense Science and Technology Committee of the Ministry of National Defense, including Shanghai Jiaotong University, Harbin Institute of Technology, Beijing Institute of Technology (now Beijing Institute of Technology), Beijing Institute of Aeronautics and Astronautics (now Beijing University of Aeronautics and Astronautics), Nanjing Institute of Aeronautics and Astronautics (now Nanjing University of Aeronautics and Astronautics) and Chengdu Institute of Telecommunications Engineering (now)