出现基底细胞液化变性的疾病是
A.多形红斑
B.白斑
C.扁平苔藓
D.类天疱疮
E.慢性唇炎
参考答案:C
解析:扁平苔藓的基本病理学特征是出现基底细胞液化变性。
---Do you know how this disabled man succeeded in running such a big company?
--- I don’t know , but I think he __________ many difficulties.
A.could have gone through
B.must have gone through
C.might go through
D.need go through
三段污水处理流程中污水进入缓冲罐是依靠()。
A.重力
B.加压泵打压
C.液位差
D.外输泵打压