Arxiu diari: 27 novembre 2016

L’aparell respiratori

[youtube]https://www.youtube.com/watch?v=thUI3RfZUms[/youtube][youtube]https://www.youtube.com/watch?v=9P2nfAZvCqA[/youtube] [youtube]https://www.youtube.com/watch?v=gTYqSyOzeNg[/youtube] [youtube]https://www.youtube.com/watch?v=rOxEIt2enMk[/youtube]

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