奠定近代化学基础的是 [ ]
A．古代化学工艺的发展
B．原子论和分子学说的创立
C．元素周期律和元素周期表的发现
D．绿色化学的提出
答案：B
Beijing is _________ capital of China and it is _________ city with many places of interest.[ ]
A. a; a
B. a; the
C. the; a
D. the; the
子宫破裂(rupture of uterus)
