نتائج البحث
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العلوم الطبيعية والرياضيات والإحصاء
فيديو
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![](https://oerx.nelc.gov.sa/sites/default/files/styles/large/public/video_thumbnails/C4LqaxyZcdo.jpg?itok=LbeQMb81)
العلوم الطبيعية والرياضيات والإحصاء
فيديو
![](https://oerx.nelc.gov.sa/sites/default/files/styles/large/public/organization-logo/MENASSATY.jpg?itok=tE9s7LV1)
المصفيـات: