A.檢查B.養(yǎng)護C.驗收D.整修
A.3B.5C.7D.10
A.鋼梁明橋面應不小于2.45mB.混凝土梁橋面應不小于3.25mC.線路允許速度160km/h以上橋梁橋面應不小于3.25mD.作業(yè)通道寬度應不小于0.8m