Rb需与哪些疾病鉴别诊断()
A.家族性渗出性视网膜病变
B.眼内炎
C.原始玻璃体增生症
D.Coats病
E.先天性白内障
参考答案:A, B, C, D, E
AIDS control and prevention is a to China as well as the whole world. [ ]
A. surprise
B. challenge
C. reaction
D. threat