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参加報酬：2財富。正解の報酬：8富 単一選択問題：自然循環式ボイラーの水循環に関する故障で含まれないものは（）。 A. 循環の停止と逆流 B. 循環倍率が過小 C. 蒸気と水の層分離 D. 下降管における蒸気の混入 B
自然循環式ボイラーの水循環故障に含まれないのは( B )です。 A. 循環の停止と逆流 B. 循環倍率が過小 C. 蒸気と水の層分離 D. 下降管における蒸気の混入
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