砌片石作业,铺砌坡度符合要求,表面凹陷用2m弦线丈量应小于()。A、30mm B、5 发布时间:2017-07-24 15:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: 砌片石作业,铺砌坡度符合要求,表面凹陷用2m弦线丈量应小于()。A、30mmB、50mmC、80mmD、100mm
题型:单项选择题 请根据下面提示。写一篇作文。词数不少于50.You are discussing the following picture with your English friend Jim. Now you are telling him how you understand the picture and what makes you think so. 查看答案