常用的表面麻醉药是（）
A.普鲁卡因
B.利多卡因
C.地卡因
D.氯乙烷
E.肾上腺素
参考答案：C
___was known to all that William had broken his promise ____he would give them a rise [ ]
A. As; which
B. What; that
C. It; that
D. It; which
在临床上，皮疹泛发是指皮损面积大于体表面积的（）
A.40％
B.50％
C.60％
D.70％
E.80％
