单选题为防止火灾由一层甲板蔓延至另一层甲板,用()结构防火正确。A甲级分隔B乙级分隔C丙级分隔D甲板基层敷料
单选题
为防止火灾由一层甲板蔓延至另一层甲板,用()结构防火正确。
A
甲级分隔
B
乙级分隔
C
丙级分隔
D
甲板基层敷料
参考解析
解析:
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