제2편 건축물의 방화 제3장 건축물의 분류와 내화 등급 3
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3. 건축 부재는 그 연소 특성에 따라 ( ) 부재로 나눌 수 있다. A 불연성 B 가연성 C 인화성 D 난연성 E 자연발화성 답변: ABD
B 가연성 C 인화성 D 난연성
A 불연성 B 가연성 D 난연성
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