1, Yang Dong's physical examination belongs to a well-known tutor who trains medical teachers. His lecture is very attractive and easy to understand. Therefore, many students who are preparing for physical examination study with the help of Yang Dong's lectures. If you have a strong learning ability, you don't need to take online classes. If it is normal, you can take this online course.

2. Good Dentist-the largest and most authoritative free registration platform for dentists in China. It is an online to offline (O2O) mobile Internet integrated service platform in stomatology. Online booking can be completed instantly without queuing.