—       a volunteer is great.

—I think so. Some of us want      volunteers for the London Olympics.

A．Being; being

B．To be; being

C．Being; to be

D．To be; to be

对于间质性肾炎，最有价值的诊断检查手段是（）.

A.肾组织学检查

B.尿沉渣检查

C.肾小球滤过功能检查

D.血、尿白细胞分类检查

E.肾小管功能检查