單項(xiàng)選擇題

沿疏散走道設(shè)置的燈光疏散指示標(biāo)志,間距不應(yīng)大于(),對(duì)于袋形走道,不應(yīng)大于(),走道轉(zhuǎn)角處不應(yīng)大于()

A.20m,15m,0.5m
B.15m,10m,1m
C.20m,10m,1m
D.20m,10m,0.5m

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