Blockchain already being adopted by some big-name companies, such as Walmart, AIG, Siemens, Pfizer, and Unilever. For example, IBM's Food Trust uses blockchain to track food's journey before reaching its final destination.
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。业内人士推荐同城约会作为进阶阅读
Shreeyam Chaulagain's mother did not want him to go.
（本报记者朱隽、王浩、常钦、郁静娴、李晓晴、邓剑洋）