It is difficult to graduate from Southeast University, which belongs to the key 985 University. Ph.D. chemistry is less difficult, but science and engineering are more difficult. In addition, everyone's learning ability is different, so the specific difficulty varies from person to person. It is more difficult to graduate from Southeast University. Southeast University belongs to the key 985 university, and the difficulty of doctoral chemistry is relatively small, but the difficulty of science and engineering is relatively large. In addition, everyone's learning ability is different, so the specific difficulty varies from person to person.