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Apple's Worldwide Developer Conference held in California, U.S. 

      

      
 Source: Xinhua| 2019-06-04 17:05:15|Editor:  Wu Qin

      

            
      


      

      

      

      
    

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      US-SAN JOSE-APPLE-WWDC
      

      Apple CEO Tim Cook hosts Apple's Worldwide Developer Conference (WWDC) in San Jose, California, the United States, June 3, 2019. (Xinhua) 
      

      

      

      


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