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【单选题】
线路改道打道钉时严禁锤击钢轨,不准用捣镐打道钉。分组打道钉时,前后距离应不小于( )根木枕。在无人行道的桥面上作业时,起钢轨外口道钉,应站在道心内侧并使用专用起钉器或弯头撬棍等特制工具。(1.0)（2.0）
A.
3
B.
4
C.
5
D.
6
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参考答案：
举一反三
【单选题】E When you are little, the whole world feels like a big playground. I was living in Conyers, Georgia, the summer it all happened. I was a second grader, but my best friend Stephanie was only in the fi...
A.
To introduce Stephanie to her.
B.
To prevent her from seeing his painting.
C.
To put the materials back in the yard.
D.
To show his artwork to her.
【单选题】使用道钉长度，必须保证木枕底部有（）mm左右厚度不打入道钉。在使用铁垫板时，应选用不同长度的道钉。
A.
30
B.
20
C.
10
D.
5
相关题目：
【单选题】E When you are little, the whole world feels like a big playground. I was living in Conyers, Georgia, the summer it all happened. I was a second grader, but my best friend Stephanie was only in the fi...
A.
To introduce Stephanie to her.
B.
To prevent her from seeing his painting.
C.
To put the materials back in the yard.
D.
To show his artwork to her.
【单选题】使用道钉长度，必须保证木枕底部有（）mm左右厚度不打入道钉。在使用铁垫板时，应选用不同长度的道钉。
A.
30
B.
20
C.
10
D.
5
参考解析：
题目纠错 0
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