Graduates pose for a photo after the commencement ceremony at Beihang University in Beijing, capital of China, June 29, 2020. Beihang University held a commencement ceremony for the Class of 2020 (Bachelor's Degrees) on Monday. In order to reduce the risk of infection of COVID-19, only a minority of graduates attended the ceremony on site with the others attending online. (Xinhua/Ren Chao)

Graduates attend the commencement ceremony at Beihang University in Beijing, capital of China, June 29, 2020. Beihang University held a commencement ceremony for the Class of 2020 (Bachelor's Degrees) on Monday. In order to reduce the risk of infection of COVID-19, only a minority of graduates attended the ceremony on site with the others attending online. (Xinhua/Ren Chao)

Graduates attend the commencement ceremony at Beihang University in Beijing, capital of China, June 29, 2020. Beihang University held a commencement ceremony for the Class of 2020 (Bachelor's Degrees) on Monday. In order to reduce the risk of infection of COVID-19, only a minority of graduates attended the ceremony on site with the others attending online. (Xinhua/Ren Chao)

GraduatSun Cong (R), president of the Chinese Aeronautical Establishment, also an alumnus of Beihang University, turns the tassel for a graduate at the commencement ceremony at Beihang University in Beijing, capital of China, June 29, 2020. Beihang University held a commencement ceremony for the Class of 2020 (Bachelor's Degrees) on Monday. In order to reduce the risk of infection of COVID-19, only a minority of graduates attended the ceremony on site with the others attending online. (Xinhua/Ren Chao)