关于色素失禁不正确的是（）
A.见于色素失禁症
B.见于扁平苔藓
C.见于红斑狼疮
D.见于黑变病
E.见于老年疣
参考答案：E
- In our English study reading is more important than speaking, I think.
- I don’t agree. Speaking is _______ reading. [ ]
A. as important as
B. so important as
C. the most important
D. not as important as
J．Martin指出，回顾数据库的应用发展史，一般有两类数据库，即主题数据库和 【18】 。
