肉芽组织的组成是()。
A.毛细血管和弹力纤维
B.小动脉和纤维母细胞
C.毛细血管和胶原纤维
D.纤维母细胞和小静脉
E.毛细血管和纤维母细胞
参考答案:E
患者女性,15岁,室间隔缺损。心电图如图3-5-1所示,应考虑为()。
A.右心房肥大
B.左心房肥大
C.左心室肥大
D.右心室肥大
E.双侧心室肥大
When it ______ to rain yesterday, I ______ an exciting story.[ ]
A. started, was reading
B. was starting, was reading
C. was starting, read
D. started, read