与传导系统最近邻的室间隔缺损是
A."脊内"室间隔缺损
B.多发肌部室间隔缺损
C.心尖部室间隔缺损
D.肺动脉瓣下室间隔缺损
E.膜周部室间隔缺损
参考答案:E
---I’m going to Hainan to spend the Spring Festival tomorrow.
---____________.
A.Congratulations
B.That’s true
C.Have a good time
D.That’s nothing
为什么天空的星座的位置会变化?