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1 日 1 問、正解すると 6 富が、参加者には 2 富が与えられます。;質問495

2016-04-18View Original

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多肢選択問題: カーバイド法 VCM の変換および合成プロセス中に、変換システムは過剰な塩化水素を許容しますが、多すぎるとなぜ許容されないのでしょうか? A. 塩化水素の無駄と過剰な塩酸の生成。 B. 環境の汚染。 C. 生産コストの増加。 D. ジクロロエタンや他の塩化物などの多くの副反応。答え:ABCD

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