RE: 4차산업혁명-오픈소스소프트웨어에 답이 있다

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4차산업혁명-오픈소스소프트웨어에 답이 있다

in blockchain •  5 years ago 

Congratulations @ykchoe57! You received a personal award!

Happy Birthday! - You are on the Steem blockchain for 2 years!

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Vote for @Steemitboard as a witness to get one more award and increased upvotes!
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5 years ago by

Downvoting a post can decrease pending rewards and make it less visible. Common reasons:

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