能发生重氮化一偶合反应的抗生素类药物是( )
A．青霉素
B．庆大霉素
C．苄星青霉素
D．盐酸四环素
参考答案：D
__________ parents say and do has a life-long effect on their children.
A．That
B．Which
C．What
D．As
肺炎球菌肺炎抗生素治疗停药指征是
A．临床症状、体征消失
B．胸片炎变、消退
C．热退停药
D．热退3天
E．热退7天
