金属防水层金属板的拼接应采用焊接,拼接焊缝应严密。竖向金属板的垂直接缝,应上下对齐。 发布时间:2018-04-30 01:23 │ 来源:www.tikuol.com 题型:判断题 问题: 金属防水层金属板的拼接应采用焊接,拼接焊缝应严密。竖向金属板的垂直接缝,应上下对齐。( )
题型:判断题 There were a lot of people standing at the door and the small girl couldn't get _____. [ ]A. between B. throughC. acrossD. beyond 查看答案