The theory of developmental assessment has been advanced for many years, and a great deal of practice and research has been done in some developed countries.

发展性评价理论已经提出很多年，而且在一些发达国家已经开展了大量的实践研究工作。

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Arab League Secretary General Amr Moussa told the 57 Islamic Conference states, as well as dozens of other countries and aid agencies, that such political efforts must be joined by developmental strategies.

VOA: standard.2010.03.21