【单选题】
当耐张段长度在800m及以下时，一个耐张段内加强线断股的总数量安全值为___。
A. 0个
B. 1个
C. 2个
D. 4个
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答案
C
解析
暂无解析
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【单选题】
填写工作票时___。
A. 必须用钢笔或圆珠笔，字迹清楚，无涂改
B. 用铅笔填写，字迹清楚，无涂改
C. 用什么笔都可以，但字迹清楚，无涂改
D. 用什么笔都可以，可以进行涂改
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