急性肾炎注射青霉素的目的是（）

A.控制肾脏炎症

B.清除先驱感染病灶

C.预防并发症

D.预防复发

E.缩短病程

"But you'll be able to come, won't you " "Yes, I think such."

A．that

B．it

C．so

D．this