Ph.D., Institute of Elemental Organic Science, Nankai University, Tianjin, which is not easy to test. According to the relevant data, it is very difficult for any university to get a doctorate, and the examination is very difficult. You must have academic qualifications and thesis research before you can sign up for the doctoral exam. Nankai University, referred to as Nankai, is located in Tianjin. It is a national key university directly under the Ministry of Education of People's Republic of China (PRC) and a national first-class construction university.