HANOVER, GERMANY - MARCH 20:  A logo of Alibaba Group and postcards of visitors are pictured at the 2015 CeBIT technology trade fair on March 20, 2015 in Hanover, Germany. China is this year's CeBIT partner. CeBIT is the world's largest tech fair and will be open from March 16 through March 20.  (Photo by Nigel Treblin/Getty Images)