婴儿后囟门在()周闭合,前囟门在()岁闭合。
参考答案:6~8;1~1.5
There was a hole in the door, through which I sight of Mr. Brown sitting in a chair.
A.caught
B.made
C.took
D.got
系膜细胞来源于()。
A.成纤维细胞
B.毛细血管内皮细胞
C.平滑肌细胞
D.足细胞
E.以上均不是