毎日一問----------工程基礎知識 シングルクイズ（10月19日）
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参加すれば3の報酬がもらえます。単一選択問題：どのような場所の防火通路にも、必ず設置しなければならないのは（ ）。A、防火に関する標語やポスター B、出口を示すライトや照明装置 C、消火ヘルメットと防火服 D、消火器具
B、出口案内灯および照明装置
B、出口案内灯および照明装置
B、出口案内灯および照明装置
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