真性尿失禁
参考答案：
膀胱失去控尿能力，尿液自主排出，膀胱是空虚的。
This book is very interesting. It is _____ by Helen. [ ]
A. is writen
B. write
C. written
D. wrote
下列哪项不是访谈法的缺点
A．人力、物力和财力消耗大B．对访谈员的依赖C．时间不固定D．匿名保证差E．标准化程度较低
