下列口腔黏膜病中癌变可能性最大的一种是()
A.口腔白斑病
B.口腔红斑病
C.口腔扁平苔藓
D.盘状红斑狼疮
E.口腔黏膜下纤维化
参考答案:B
Cathy doesn't know_____ about it. [ ]
A. nothing
B. everything
C. something
D. anything