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 Hans Rosling's 200 Countries, 200 Years, 4 Minutes - The Joy of Stats - |
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日期: 13/05/2012 07:33 - 通过: bambano - 280 意见 - 类别: 各个
More about this programme: www.bbc.co.uk Hans Rosling's famous lectures combine enormous quantities of public data with a sport's commentator's ...
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中国的 
![rojadirecta venezuela vs ecuador [VIDEO]](http://www.bandu2.com/videos/_mbkh/content/bambave-23332.jpg)
