题目内容
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[主观题]
《普速铁路线路修理规则》规定,护轨顶面不应高出基本轨顶面(),也不应低于()。
A.3mm,25mm
B.5mm,25mm
C.5mm,15mm
D.3mm,15mm
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A.3mm,25mm
B.5mm,25mm
C.5mm,15mm
D.3mm,15mm
A.1391mm
B.1390mm
C.1389mm
D.1388mm
A.0.2~0.3mm
B.0.2~0.4mm
C.0.3~0.4mm
D.0.2~0.5mm
A.1.5~2m,1.5m,0.75m
B.2.5~3m,1.0m,0.75m
C.1.5~2m,1.0m,0.85m
D.2.5~3m,1.5m,0.85m