№60 Практическая работа №17 на тему «Волновые свойства света»
Кульжанов А
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![Почему развалился Советский Союз [БЕЗ КОНСПИРОЛОГИИ]](https://sun9-42.userapi.com/o5lbd5dLf8hmiF77Es7fIve4AeMEY9CmK2f5gQ/BCaqSJTwK4Q.jpg)
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