A:2,3,5
B:2,3,4
C:3, 7 ,4
D:2,4,5
When I passed this afternoon, I saw a little boy was lying on the grass, his hands _____ under his head.
Cici enjoys dancing. It’s one of her______.
在中国历史上,国家大一统的观念有悠久历史、深厚的基础,这种国家大统一局面形成始于( )