File photo of a man walking past an advertising billboard outside the Greentown residential construction site in Hangzhou

Reuters
File photo of a man walking past an advertising billboard outside the Greentown residential construction site in Hangzhou
A man talks on his mobile phone as he walks past an advertising billboard outside the Greentown residential construction site in Hangzhou, Zhejiang province in this September 23, 2011 file photo. REUTERS/Steven Shi/Files
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