8 кл. Электрический ток в различных средах
Раскрывается физическая природа электрического тока в металлах, электролитах и газах.
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![Batman: Arkham Knight - Полное прохождение в 2К 60fps [NG+] - Часть 12](https://sun9-34.userapi.com/hdI81PVMM6BwmqtT0Sa7lgeW8_zbgtkQns-WCQ/eBuaN8NxOwE.jpg)
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