疱疹样天疱疮的特点是（）
A.皮损多形性
B.瘙痒明显
C.尼氏征阳性
D.多见于老年人
E.预后比天疱疮好
参考答案：A, B, D, E
The position, however, ________you are applying, is not quite a wellpaid one.[ ]
A. that
B. which
C. for which
D. to which
背压
