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【일문일답 제084문】2016.07.13

2016-07-13View Original

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【일문일답 제084문】2016.07.13 용기나 탑식 장비 내부로 들어가려면 산소 농도는 얼마 이상이어야 하나요? 답변한 후 참고 답안을 확인할 수 있으며, 핵심 요점만 맞히면 점수를 얻을 수 있습니다. 탱크나 탑과 같은 장비 내부로 들어가려면 산소 농도가 19%~23%여야 합니다.

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