你可能感興趣的試題

A.160mm
B.150mm
C.130mm
D.125mm

A.210mm
B.150mm
C.140mm
D.110mm

A.起道搗固
B.墊調(diào)高板
C.清篩利于排水
D.清篩換砟起道搗固

A.2%
B.3%
C.4%
D.6%

A.1435mm
B.1440mm
C.1445mm
D.1450mm

A.1440mm
B.1450mm
C.1456mm
D.1460mm

A.1%
B.2%
C.3%
D.4%

A.40mm
B.50mm
C.60mm
D.70mm

A.100倍
B.200倍
C.300倍
D.400倍

A.100倍
B.200倍
C.300倍
D.400倍