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5:25
YouTube
Old Cuteboy 老玩童
用双氧水制造生成氧气 老玩童 Old CuteboyUse hydrogen peroxide to produce oxygen O2 老玩童用H2O2过氧化氢和催化剂二氧化锰MnO₂做氧气紧急备用
氧是人体进行新陈代谢的关键物质,是人体生命活动的第一需要。呼吸的氧转化为人体内可利用的氧,称为血氧。血液携带血氧向全身输入能源,血氧的输送量与心脏、大脑的工作状态密切相关。心脏泵血能力越强,血氧的含量就越高 ...
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