Дмитрий Александров Презентация
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![Лампа накаливания — возможно, лучшее изобретение [Veritasium]](https://sun9-74.userapi.com/YigAdpAwkMTmfD68jbL52fRq--giDtRlKEbd3g/GxXqC-ft_2o.jpg)
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