房间隔缺损的X线表现为（）
A.右心房增大
B.右心室增大
C.左心室增大
D.主动脉结缩小
E.肺血增多
参考答案：A, B, D, E
Many things were stolen and the theft _________ unreported.
A．became
B．left
C．got
D．went
膜式壁孔管装配弯、直管拼组法中，一般采取先组装附件再将单根孔管与管屏组装的装配方法。( )
