试题详情

钢轨顶面擦伤轻伤标准:时速200~250km/h的线路轨顶面擦伤深度大于( ),时速250(不含)~350km/h的线路钢轨顶面擦伤深度大于( );

A0.35mm;0.35mm

B0.5mm;0.5mm

C0.5mm;0.35mm

D0.35mm;0.5mm