____________ is it today? It's Monday.[ ]
A. What time
B. What day
C. What colour
答案:B
室间隔缺损的血流动力学改变常引起( )
A.左心房、左心室扩大B.右心房、右心室扩大C.右心房、左心室扩大D.左心房、右心室扩大E.全心扩大