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Answer :

这到底是什么意思。

本题已由中国数学会官方解答(现有会员:3人)  

Answer:

Yes?

Explanation:

I don't exactly understand the question but yes the carbon dioxide (co2) you breathe out is used by plants where they break it into carbon and oxygen, release the oxygen for us to breathe, and us the carbon to create glucose and ATP.