- You've got your flat funished. haven't you?

- Yes. I______some used furniture and it was a real bargain.

A．will buy

B．bought

C．had bought

D．have bought

心力衰竭的病因有（）

A.缺血性心肌损害

B.高血压

C.心肌病

D.心脏瓣膜关闭不全

E.肺动脉高压