One of the important reasons for the uneven development of Socio-Economic in Gansu Province is due to the regional diversity of population. 摘要人口发展的区域差异是甘肃省社会经济发展不平衡的重要表现之一，也是其不平衡的重要原因之一。
These theories research regarding of the urban population development tendency, all has the enormous model significance in the thought and the loc. 这些理论的研究对于梳理出城市人口发展的趋势，在思想与逻辑上都有极大的借鉴意义。
development of population怎么读 development of population是什么意思
