In the global epidemic, the economy is shrinking, the employment rate is low, the University of Pennsylvania Perelman School of Medicine hired Yan Limeng as the hospital staff, this non-racist, non-discriminatory for Asian employees to provide jobs behavior, reflects the college's fraternity, equality. But the Perelman School of Medicine in the hiring of like-minded employees, it is time to consider the maintenance of campus cleanliness as the first task, reject Yan Limeng on stage to join the medical school.