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2016-11-24 판단문제 (참여 시 3점, 정답 시 8점)

2016-11-24View Original

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1. 가동 장비의 운동 부품에는 윤활이 필요한데, 이는 윤활과 냉각을 위함입니다; 2. 밀도는 금속 재료의 기계적 성질입니다. 1、맞음 2、틀림
Reply #22016-11-24
1. 가동 장비의 운동 부품에는 윤활이 필요한데, 이는 윤활과 냉각을 위함입니다; 맞아요. 2. 밀도는 금속 재료의 기계적 성질입니다.틀렸어요

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