allogenic succession

This paper thoroughly analyzes the statue quo of the economical difference between city and country in Shandong Province,posts inherent mechanism of differential changes,predicts the difference between city and country in the immediate future with one-element-multinomial-circle model,puts forward the methods and strategies of moderately differential development.

深入分析了山东省城乡经济差异的现状特点 ,揭示了差异变动的内在机制 ,采用了一元多项式回归模型对城乡差异进行了预测 ,并提出了使城乡经济适度差异发展的战略和对

Responding to the new talent requirements of social economic transformation and multi-cultural development, differentiated development instruction is an important instructional concept in the reform of basic education.

回应社会经济转型和多元文化发展对人才规格的新要求,差异发展教学已经成为我国基础教育改革中一种重要的教学理念。