— It's said a pianist will perform at Poly Theater on Friday evening. Is it Lang Lang?

— Yes, it _______ him. He _______ for a week.

A．must be; has arrived here

B．Can’t; has been here

C．must be; has been here

D．maybe; has arrived here

女性，8岁，3周前发热，咽痛，1周来眼睑轻度水肿，1天前突然剧烈头痛，全身抽搐，意识不清，BP170/110mmHg，血红蛋白120g/L，尿常规蛋白（++），颗粒管型2～3个/HP，BUN12.8mmol/L。诊断为急性肾炎并发高血压脑病。除应用降压药外，如果患者持续抽搐可静脉注射（）

A.泼尼松

B.地西泮

C.普萘洛尔

D.甘露醇

E.抗菌药物