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The Baidu logo is seen outside the Baidu headquarters in Beijing on December 17, 2014. Baidu, China's leading search engine, and ride sharing company Uber announced a strategic investment and cooperation agreement in Beijing on December 17. AFP PHOTO / Greg BAKER (Photo credit should read GREG BAKER/AFP/Getty Images)

The Baidu logo is seen outside the Baidu headquarters in Beijing on December 17, 2014. Baidu, China's leading search engine, and ride sharing company Uber announced a strategic investment and cooperation agreement in Beijing on December 17.  AFP PHOTO / Greg BAKER        (Photo credit should read GREG BAKER/AFP/Getty Images)