下列哪种角膜炎最危险（）
A.绿脓杆菌性角膜炎
B.真菌性角膜炎
C.匍行性角膜溃疡
D.棘阿米巴性角膜炎
E.病毒性角膜炎
参考答案：A
儿童多发性抽动症阴虚风动证的首选方剂是（）。
A.大定风珠加减
B.礞石滚痰丸加减
C.千金龙胆汤加减
D.知柏地黄汤
E.醒脾散加减
I often laugh when I see my grandma learning pop songs. But she says, " One is
never _____ old to learn. " [ ]
A. too
B. so
C. very
D. quite
