نتائج البحث
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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/Yadel2t_GUg.jpg?itok=HMMpO7Rr)
![](https://oerx.nelc.gov.sa/sites/default/files/styles/large/public/video_thumbnails/672227703.jpg?itok=vnjTRt5l)
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