【매일 한 문제】2.11 공백 채우기 문제: 동벤 장치는 ( )를 냉매로 사용합니다
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이 게시글은 마지막으로 2016-2-16 11:27에 촉화일수에 의해 수정되었습니다.보기 문제: 동벤 장치는 ( )를 냉매로 사용합니다.
정답: 암모니아
정답일 경우 +2점, 자세한 논의 시 +5점. @관공옥
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