关于测定清除率的意义的叙述错误的是
A.可以了解肾的功能
B.可以测定肾小球滤过率
C.可以测定肾血流量
D.可以推测肾小管的转运功能
E.不能推测肾小管的转运功能
参考答案:E
内痔兼有贫血者可选用()
A.寒
B.热
C.风
D.气
E.脓
So sudden ________that the residents had no time to escape.
A.was the earthquake
B.did the earthquake
C.the earthquake did
D.the earthquake was