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2017年4月6日の練習**質問、回答には 2 ~ 6 ポイントが加算されます (**上映後の評価はつきませんのでご返信よろしくお願いします)

2017-04-06View Original

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多肢選択問題 装置を駆動すると真空引きができないので(ABC)となります。 A. 原油量を厳密に管理する B. 常圧塔の抽出量を増やす C. 真空塔塔頂温度を管理する D. 真空炉の出口温度を下げる

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