I'm 11 years old. Lily is older than me.
How old is Lily? [ ]
A. 10
B. 9
C. 12
答案:C
RS-485接口芯片在使用时应注意哪些事项?
以下不是梅毒的临床分型的一项是()
A.三期梅毒
B.先天梅毒
C.梅毒下疳
D.一期梅毒
E.二期梅毒