更多"[单选题]国产75kg/m钢轨,轨腰厚是()"的相关试题:
[单选题]国产75kg/m钢轨,轨腰厚是()
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm
[单选题](44371)国产 75kg/m 钢轨,轨腰厚是( ) (1.0分)
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm
[单选题]国产50kg/m钢轨,轨腰厚是( )。
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm
[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][078]国产 60kg/m 钢轨,轨腰厚是( )
A.A、A.20mm
B.B、B.16.5mm
C.C、C.15.5mm
D.D、D.14.5mm
[单选题]771. 771.国产60kg/m钢轨,轨腰厚是()。
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm
[单选题](44369)国产 60kg/m 钢轨,轨腰厚是( ) (1.0分)
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm
[单选题]60Kg/m钢轨的轨腰厚度是( )。
A.16.5mm
B.15.5mm
C.14.5mm
D.14.5mm
[单选题]50Kg/m钢轨的轨腰厚度是( )。
A.16.5mm
B.15.5mm
C.14.5mm
D.14.5mm
[判断题]新建、改建、大维修铁路应采用长定尺钢轨,75kg/m钢轨应选用75m定尺钢轨。
A.正确
B.错误