소방설비기사 필기 소방관계법규 1(소방법이 4분법에서 5분법으로 개정됨, 설명란 참조)
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Channel: ABC소방
Views: 77,102
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Id: JtZcWLUlyU0
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Length: 60min 51sec (3651 seconds)
Published: Wed Jun 16 2021
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