具有疗伤续断、活血祛瘀止痛功效的药物是（）
A.冬虫夏草
B.菟丝子
C.沙苑子
D.杜仲
E.续断
参考答案：E
Please remember ____ the book to your brother. He is at school. [ ]
A. taking
B. to take
C. bringing
D. to bring
心脏骤停时最常见的心电图改变的类型是()
A．室性早搏
B．室性心动过速
C．室颤
D．房性早搏
E．房颤
