试题与答案

单开道岔标准定位时,两接触线相交于道岔导曲线内外轨间距为()处上方。(A)375mm

题型:单项选择题

题目:

单开道岔标准定位时,两接触线相交于道岔导曲线内外轨间距为()处上方。

(A)375mm

(B)745mm

(C)600mm

(D)690mm

答案:

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参考答案:D

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