下列心房间隔缺损的X线表现，错误的是（）。
A.肺动脉段突出
B.肺门舞蹈征
C.主动脉结缩小
D.左心室增大
E.右心房增大
参考答案：D
—It’s reported that the government hasn’t found the missing plane’s black box yet.
—__________.
A．I don’t think so
B．I’m sorry to hear that
C．I’m afraid not
D．I hope so
