กลุ่มสาระการเรียนรู้วิทยาศาสตร์และเทคโนโลยี

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Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry'\s standard dummy text ever since the 1500s.

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Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry'\s standard dummy text ever since the 1500s.