房间隔缺损的典型心电图表现为()
A.电轴右偏,不完全性右束支传导阻滞
B.右心室肥厚
C.P波高尖
D.P-R间期延长
E.右心房与右心室肥大
参考答案:A
If I _____ plan to do anything I want to, I'd like to go to Tibet and travel through as much of it as possible. [ ]
A. would
B. could
C. had to
D. ought to
可将畜体分成背腹两部的切面是()
A.矢状面
B.正中矢状面
C.额面
D.横断面
E.前面