매일 한 문제, 정답자에게는 6개의 부를 지급하고, 참가자에게는 2개의 부를 지급합니다；6월 19일
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단일 선택문: 카르보네이트법을 이용한 VCM 전환 과정에서 염화비닐의 순도를 측정할 때, 샘플링 튜브에서 가스가 누출되면 측정된 염화비닐의 순도는 실제 값보다 ( )가 됩니다. A、높음 B、낮음 C、동일 답변: B、낮음
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