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接触コーキング改質油ブレンドバージョン 20190419

2019-04-18View Original

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参加する:賞品 1 フォーチュン;正解する: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:特定の条件下で、潤滑油が流動性を失い、プラスチックの性質を持つ最高の温度を ( ) といいます。(A) 凝固点 (B) 引火点 (C) 曇り点 (D) 凝結点 答え:D 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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