China marks World Environment DayPupils attend an activity publicizing the World Environment Day in Zhengzhou, capital of central China's Henan Province, June 5, 2004.  Pupils attend an activity publicizing the World Environment Day in Zhengzhou, capital of central China's Henan Province, June 5, 2004.  A boy visits an exhibition on environment protection at the cultural square in Changchun, capital of northeast China's Jilin Province, June 5, 2004, the World Environment Day. |
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