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15 déc. 2009 - ГОСТ Р 53620-2009 Информационно-коммуникационные технологии в образовании. Электронные образовательные ресурсы. Общие положения

Ajouté au bande de temps:

Носков лр4

Byクーンジェーニャ
29 nov. 2019
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Date:

15 déc. 2009
Maintenaint
~ Il y a 15 ans
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