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接触コーキング改質油ブレンドバージョン 20190727

2019-07-29View Original

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参加する:賞品 1 フォーチュン;正解:賞品 3 富。 https://bbs.hcbbs.com/static/image/hrline/2.gif https://bbs.hcbbs.com/static/image/hrline/3.gif 多肢選択問題:以下の選択肢のうち、上部循環ポンプが真空引きされない理由は()です。A. 塔頂温度が高温になっています。 B. 塔頂温度が低い。低温還流温度が高い。 D. 低温還流は水を運びます。答え: C https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif 注記:答えは2日後に自動的に発表されます。

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