اقتباس:
المشاركة الأصلية كتبت بواسطة معلمة علوم
النسخة الحديثة من مركز البحوث التربوية
لكتاب المعلم للفصل الأول للمناهج الجديدة ( الصفين الثامن والتاسع )
المحتوى المخفي لايقتبس
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