蛇串疮有水疱伴有坏死者宜选用何种剂型治疗（）

A.鲜马齿苋、玉簪叶捣烂外敷

B.四黄膏、青黛膏外涂

C.九一丹

D.补骨脂酊剂

E.樟脑膏

New digital mobile phones definitely produce less radiation, but that doesn’t         mean that they should be used without caution.

A．generally

B．ultimately

C．relatively

D．necessarily