长效的青霉素制剂是：
A．青霉素B．氨苄西林C．羧苄西林D．苯唑西林E．苄星青霉素
参考答案：E
There must have been someone who has instigated a rebellion because the people are so well organized.
A．incited B．tampered C．intruded D．meddled
下列属于呆小症病因的是（）
A.营养不良
B.甲状腺功能减退
C.维生素缺乏
D.肾上腺皮质肿瘤
E.垂体功能减退
