更多"[单选题]国产60kg/m钢轨,轨腰厚是( )"的相关试题:
[单选题]国产60kg/m钢轨,轨腰厚是()。
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm
[单选题]A-D-A-003 5 2 3
国产60kg/m钢轨,轨腰厚是( )
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm
[单选题][T]A-D-A-003 5 2 3
国产60kg/m钢轨,轨腰厚是( )
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm
[填空题]高速铁路60kg/m钢轨轨腰厚度为( ) mm。