透过角膜混浊可看清虹膜纹理称为（）
A.角膜薄翳
B.角膜斑翳
C.角膜白斑
D.角膜瘘
E.角膜葡萄肿
参考答案：A
Some people tried to separate our country by taking illegal action, which didn't exactly ____
racial harmony. [ ]
A. make it
B. make for
C. make out
D. make up
主要泻下成分与番泻叶相似的药材是（）
A.巴豆
B.牵牛子
C.牛蒡子
D.大黄
