Green Building Conference and Exhibition held in South Africa
09:36, July 15, 2011

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A visitor views a model of a building at the Green Building Conference and Exhibition in Johannesburg, South Africa, July 13, 2011. Some 1,000 people and 60 enterprises attended the event held from July 13 to 14. (Xinhua/Li Qihua)
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(Editor:张茜)
