66.动车组一级检修限度,轮对踏面擦伤深度≤( )。[213010201]

66.动车组一级检修限度,轮对踏面擦伤深度≤( )。[213010201]

A.0.5mm

B.0.6mm

C.0.7mm

D.0.8mm

正确答案是A