城市人口的机械增长是通过（）来实现的
A.人口迁移
B.农转非
C.城市化
D.发展经济
参考答案：A
---Which is your preference, tea or coffee?
---______ They are both to my taste.
A．None.
B．Either.
C．What about you?
D．At your service.
营盘山文化遗址
