原发性闭角形青光眼（如图）禁用()
A.缩瞳药
B.碳酸酐酶抑制药
C.高渗药
D.镇静药
E.扩瞳药
参考答案：E
—Michael was late for Mr.Smith's oral class this morning.
— ? As far as I know, he never came late to class. [ ]
A. How come
B. So what
C. Why not
D. What for
（）具有“信用创造”的功能。
A.中央银行
B.商业银行
C.保险公司
D.证券公司
