单项选择题
在《公路隧道消防技术规程》中规定,每孔隧道和隧道内附属用房均应设置为独立的报警区域隧道探测区域宜为()
A.50m~100m
B.50m~150m
C.100m~200m
D.150m~200m
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单项选择题
A.50m~100m
B.50m~150m
C.100m~200m
D.150m~200m
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