Not so good. Huang Kai, an external teacher of Nanjing Kaiming Education and Training Institute, graduated from City University of new york with a master's degree in economics. The main study and research directions are industrial competitiveness, international enterprise management, strategic investment under international conditions and other economic issues, which have little to do with physics. He once said in a public speech in 2020 that he was not very good at science majors such as physics.