钢轨钻孔位置应在轨腹中和轴上,且必须倒棱(含胶结绝缘接头),禁止在焊缝两端()范围内 发布时间:2018-11-08 12:30 │ 来源:www.tikuol.com 题型:填空题 问题: 钢轨钻孔位置应在轨腹中和轴上,且必须倒棱(含胶结绝缘接头),禁止在焊缝两端()范围内钻孔。
题型:填空题 —Well, honey, I'm sorry but I have to board.—________, and God bless you when you are in Libya.[ ]A. Enjoy yourself B. Do take careC. Have a nice trip D. Mind your steps 查看答案