第2篇 建築の防火 第3章 建築の分類と耐火等級3
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3、建築部材はその燃焼性能によって（）の部材に分けられる。A 不燃性 B 可燃性 C 易燃性 D 難燃性 E 自燃性 答え：ABD
B 可燃性 C 易燃性 D 難燃性
A 不燃性 B 可燃性 D 難燃性
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