患者女性39岁，风湿性心脏病史，心尖区隆隆样舒张期杂音和3/6级吹风样收缩期杂音，最符合下述哪一种诊断？

A．二尖瓣狭窄

B．二尖瓣关闭不全

C．主动脉瓣狭窄

D．二尖瓣狭窄伴二尖瓣关闭不全

E．三尖瓣狭窄伴三尖瓣关闭不全

---Was it under the tree ____ you were away talking to a friend?

--- Sure. But when I got back there, the bike was gone.

A．that

B．where

C．which

D．while