南京江宁区雅思培训班需要多少钱

2019中国国际大数据产业博览会5月26日在贵州省贵阳市开幕，为期4天的数博会吸引了来自59个和地区的448家企业参展，将展示大数据新产品、新方案、新技术、新成果以及新模式。

The China International Big Data Industry Expo 2019 kicked off in Guiyang,

Guizhou province, on Sunday. The four-day event has attracted 448 enterprises

from 59 countries and regions to show the latest products, solutions,

technologies, achievements and patterns on big data.