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Deleted 01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/02.mirror/01.new-course-main/textbook.en.md, 01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/02.mirror/01.new-course-main/textbook.es.md, 01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/02.mirror/01.new-course-main/textbook.fr.md files

01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/02.mirror/01.new-course-main/textbook.en.md

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-title: 'new course : main'
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-new course : main
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01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/02.mirror/01.new-course-main/textbook.es.md

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-title: 'nuevo curso: principal'
-published: false
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-nuevo curso: principal
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01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/02.mirror/01.new-course-main/textbook.fr.md

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-title: 'nouveau cours : principal'
-published: false
-visible: false
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-nouveau cours : principal
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