카카오스토리
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광섬유의 코어와 클래딩을 구성하는 물질로 가장 적절한 것은? (순서대로 코어, 클래딩)https://gongquiz.com/main/pages/search.php?q=%EC%86%8C%EB%B0%A9%EA%B3%B5%EB%AC%B4%EC%9B%90%28%EA%B3%B5%EA%B0%9C%29+%EA%B3%BC%ED%95%99
https://gongquiz.com/main/pages/%EA%B7%B8%EB%A6%BC%EC%9D%80+%EB%A7%A4%EC%A7%88+A%2C+B%2C+C%EC%97%90%EC%84%9C+%EB%8B%A8%EC%83%89%EA%B4%91%EC%9D%B4+%EC%A7%84%ED%96%89%ED%95%98%EB%8A%94+%EB%AA%A8%EC%8A%B5%EC%9D%84+%ED%99%94%EC%82%B4%ED%91%9C%EB%A1%9C+%EB%82%98%ED%83%80%EB%82%B8+%EA%B2%83%EC%9D%B4%EB%8B%A4++%EC%A0%90%EC%84%A0%EA%B3%BC+%ED%8C%8C.quiz?mode=practice&quizNo=725240&historyNo=reset&dateNo=9970
[]
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{"725240":[1,2,3,4],"725241":[1,2,3,4],"725242":[1,2,3,4],"725243":[1,2,3,4],"725244":[1,2,3,4],"725245":[1,2,3,4],"725246":[1,2,3,4],"725247":[1,2,3,4],"725248":[1,2,3,4],"725249":[1,2,3,4]}
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123553484
