It's 2 1 1, one copy. Because Nanjing University of Aeronautics and Astronautics refers to Nanjing University of Aeronautics and Astronautics, it is a comprehensive national key university directly under the Ministry of Industry and Information Technology of the People's Republic of China, featuring aerospace and civil aviation and focusing on science and engineering. It is a national "double-class" and "2 1/project" key construction university, and the enrollment batches in major provinces are all1batch, so Nanjing University of Aeronautics and Astronautics.