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RE: Cent - Earn ETH answering questions.
Resteemed by the MAP-AAKOM community and upvoted by @rycharde.
Thanks, looks interesting. I tried to do this on Steemit for maths and physics but just not the takers as yet.
That's a good idea, I was thinking about how this could be useful for studying and also for working communities to help get and objective point about some issues based on the knowledge of an expert, thanks for the upvote and resteem.