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1 gen 2001 anni - ГОСТ Р 53620-2009 Информационно-коммуникационные технологии в образовании. Электронные образовательные ресурсы. Общие положения;

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Петров Лента

ByДанил Петров

1 apr 2021

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1 gen 2001 anni

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~ 24 years ago

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