환경 보호 매일 한 문제 (11.30)
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1. 생산 과정에서 밀폐된 곳은 ( )을 강화해야 합니다.A. 밀봉 B. 환기 및 배기 C. 방열 D. 단열2. 황화수소가 존재하는 장소에는 경고 표지판을 설치해야 하며, 그곳에 들어갈 때에는 ( )를 예방하기 위한 주의사항을 준수해야 합니다.A. 질식 B. 분진 C. 중독 D. 저산소증 B;C
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