vendredi 31 août 2018

This Is Blockchain Iox 2018 9월 1일

YouTube: Blockchain
This Is Blockchain Iox 2018 9월 1일
كيفية التجارة bitcoins - how the blockchain is changing money and business | don tapscott
You can start practise here - https://goo.gl/ZUc8xq (risk warning: your capital might be at risk)
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