C Let's say we have a small piece of c.
假设有一小段。
The two basic movement patterns of an Economic Central City (E. C. C) are centralization and diffusion.
经济中心城市具有集聚和扩散这两种基本运动形式。
The two basic movement patterns of an Economic Central City (E. C. C) are centralization and diffusion.
经济中心城市具有集聚和扩散这两种基本运动形式。
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