新生儿衣原体结膜炎的治疗是()
A.局部用药
B.红霉素治疗2~3天
C.红霉素治疗7~10天
D.局部用药+红霉素治疗10~14天
E.有自限性,可不予治疗
参考答案:D
若a,b为整数,试求满足条件|a+b|19+|ab|99=1的a,b值,并写成(a,b)的形式.
Once in bed, I read for twenty minutes and then__________ the light. [ ]
A. turned out
B. turned over
C. turned on
D. turned up