I ____ you, but I didn’t think you would listen to me.

A．could have told

B．must have told

C．should tell

D．might rell

诊断风湿性心脏病二尖瓣严重损害，最重要的X线征象是（）。

A.肺循环高压

B.左心房重度增大

C.二尖瓣区钙化

D.右心房重度增大

E.重度间质性肺水肿