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ru he zai hua xue jiao xue zhong jin xing huan bao jiao yu
Pages: 141-142
Year: Issue:  6
Journal: Occupation

Abstract:  随着社会主义现代化建设的不断发展,环境保护作为我国的一项基本国策已越来越受到人们的关心与重视.发达国家曾经走过一条先污染后治理的弯路,并为此付出了高昂的代价.
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