نتائج البحث
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العلوم الطبيعية والرياضيات والإحصاء
فيديو
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العلوم الطبيعية والرياضيات والإحصاء
فيديو
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العلوم الطبيعية والرياضيات والإحصاء
فيديو
![](https://oerx.nelc.gov.sa/sites/default/files/styles/large/public/organization-logo/Group%2036.png?itok=2YTbU6cn)
![](https://oerx.nelc.gov.sa/sites/default/files/styles/large/public/video_thumbnails/UprEPHAJC8k.jpg?itok=iNx8Rf_d)
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![](https://oerx.nelc.gov.sa/sites/default/files/styles/large/public/video_thumbnails/kJ_km0AGs_o.jpg?itok=uNbBhk__)
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