单选题:地铁车站区间隧道内应设置纵向疏散平台,当联络通道之间的距离小于等于(  )时,可不设纵向疏散平台。

题目内容:
地铁车站区间隧道内应设置纵向疏散平台,当联络通道之间的距离小于等于(  )时,可不设纵向疏散平台。 A.100m
B.300m
C.600m
D.800m

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