肝药酶诱导剂的作用是
A．延长某些药物的半衰期
B．避免肝肠循环
C．增强肝药酶活性
D．加快某些药物的代谢
E．加速自身代谢
参考答案：C,D,E
下述支架不能用作食管病变治疗的为（）
A.Strecker支架
B.Wallstent支架
C.Ultraflex食管支架
D.Z形支架
E.Symphony支架
---yes, _______.We’d better buy some.
A. run out of; we have run it out
B. run out of; our food has run out
C. run out of; out food has been run out
D. run out; our food has run out
