下述风湿性心脏病二尖瓣狭窄的影像，错误的是（）
A.间质性肺水肿
B.肺门影增大
C.梨形心
D.双房影
E.主动脉结增大
参考答案：E
I graduated from college twenty years ago and I ____________ as an English teacher in this middle school ever since.
A．worked
B．have been working
C．had worked
D．was working
渗出性炎症的类型有哪些？各型主要特点是什么？
