问题
单项选择题
铺设22-24kg/m钢轨,使用道钉的长度是()毫米。
A.97
B.112
C.136
D.154
答案
参考答案:C
铺设22-24kg/m钢轨,使用道钉的长度是()毫米。
A.97
B.112
C.136
D.154
参考答案:C
阅读理解。 | |
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