心电图可能的结果是
A.左心室肥厚
B.右心室肥厚
C.右心房肥大
D.左束支阻滞
E.不完全性右束支阻滞
参考答案:A
A: Can I help with the luggage It looks a bit heavy.B: ().
A. Yes, they are full of books.
B. Don’t bother. I can take care of it myself.
C. Never mind. You don’t have to be so polite.
D. OK. Go ahead and do it.
以百合为例,简述子房的一般结构。