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[单选题]
60kg/m钢轨18号道岔心轨第二牵引点,采用代号()的S700K型电动转辙机.
A.A31/A32
B.A33/A34
C.A35/A36
D.A17/A18
查看答案
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A.A31/A32
B.A33/A34
C.A35/A36
D.A17/A18
A、对
B、错
钢轨类型为60kg/m,轨底宽度为()。
A.176mm
B.150mm
C.152mm
D.132mm
A.120×80×10mm
B.120×80×12mm
C.120×80×15mm
D.150×100×18mm