钢梁端、无砟无枕梁端、拱桥温度伸缩缝和拱顶处前后各( )m范围内,纵横梁连接处距横梁边缘0.6m范围内,不应有钢轨接头,否则应

钢梁端、无砟无枕梁端、拱桥温度伸缩缝和拱顶处前后各( )m范围内,纵横梁连接处距横梁边缘0.6m范围内,不应有钢轨接头,否则应将其冻结、焊接或铺设长钢轨。

A.5

B.4

C.3

D.2

正确答案是D