【매일 한 문제】2.8 공백 채우기 문제: 동벤젠 설비의 원료 출처
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작성 문제: 톨루엔 생산 설비의 원료는 증류 설비의 ( )와 ( ) 분획에서 얻어집니다.답변: 감압 2단계, 감압 3단계
정답 시 +2점, 심도 있는 논의 시 +5점 @관공옥
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