人工装岩工作前首先检查刚装的点的支架、顶板及两帮的安全情况是否良好。如有不安全的隐患 发布时间:2019-10-10 22:17 │ 来源:www.tikuol.com 题型:填空题 问题: 人工装岩工作前首先检查刚装的点的支架、顶板及两帮的安全情况是否良好。如有不安全的隐患要立即处理,()前不得工作。
题型:填空题 25. These two countries are similar ______ they both have a high snowfall during winter.A.to which B.in which C.in that D.except that 查看答案