利血平口服达峰时间（）
A.1周
B.1～2周
C.3～4周
D.2～3周
E.4～5周
参考答案：D
引起急性肾小球肾炎的常见病因是
A．葡萄球菌感染
B．乙型溶血性链球菌感染
C．HAV感染
D．HBV感染
E．β-溶血性链球菌A组12型
—Do you know ______ he is going to stay in Shenzhen?
—Sorry, I don’t know. Maybe a few weeks, but I’m not sure.
A．when
B．how long
C．what time
D．how soon
