辩证分析机遇挑战：大国关系牵动国际形势，国际形势演变深刻影响国内发展，我国发展处于战略机遇和风险挑战并存、不确定难预料因素增多的时期。
Who owns Blockchain?Blockchain is a decentralized technology. It’s a chain of distributed ledgers connected with nodes. Each node can be any electronic device. Thus, one owns blockhain.
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