城市化最主要的标志是
A.城市人口增加
B.城市用地规模扩大
C.城市人口在总人口中的比重上升
D.城市数量增加
答案:C
本题考查城市化。衡量城市化水平高低的标志,城市人口占总人口的比重。
“木兰秋狝”的“木兰”是满语()的意思,秋狝就是()。
Which of the following most accurately describes the condition that typically exists when marginal product is at a maximum()
A. Marginal cost is at a minimum.
B.Average product is at a minimum.
C.Average variable cost is increasing.