摘要：选取1984 ~ 2014年我国地级以上城市建成区面积的数据，在描述城市扩张现状的基础上分析我国城市规模演变的特征和效率。
Abstract: Using the data of built-up area at the city level from 1984 to 2014, the paper describes the present status of urban sprawl and analyzes the characteristics and efficiency.
客户已遍及长沙各个高档楼盘和湖南各个地级城市，始终保持60%以上市场行业占有率。
Customers have been throughout all high-end real estate and Hunan Changsha all prefecture-level city, maintained over 60% of market share.
客户已遍及长沙各个高档楼盘和湖南各个地级城市，始终保持60%以上市场行业占有率。
Customers have been throughout all high-end real estate and Hunan Changsha all prefecture-level city, maintained over 60% of market share.
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