下列哪项不是泪囊摘除术的适应症
A．结核性泪囊炎
B．泪小点闭锁
C．严重的角膜溃疡
D．泪囊太小
E．年老体弱或合并全身疾患者
参考答案：B
— How often are the Olympic Games held?
— ______ four years. [ ]
A. Every
B. Each
C. In
D. For
磁石宜用治（）
A.肺气不足之虚喘
B.肾不纳气之虚喘
C.肺气壅滞之咳喘
D.痰壅气逆之咳喘
E.热邪壅肺之咳喘
