《普速铁路桥隧建筑物修理规则》规定，木桥枕铺设时，每根木桥枕应用两根经过防锈处理的直径（)标准型钩螺栓与钢梁钩紧。

A.10mm

B.20mm

C.30mm

D.40mm

A.18

B.20

C.22

D.25

A.20mm

B.22mm

C.23mm

D.24mm

A.20mm

B.21mm

C.22mm

D.23mm

A.22mm

B.20mm

C.18mm

D.24mm

A.18～20mm

B.20～22mm

C.22～24mm

D.24～26mm

A.10%

B.15%

C.20%

D.25%

A.1mm

B.2mm

C.3mm

D.4mm

A.2mm

B.3mm

C.4mm

D.5mm