保温层或隔热层的材料大都是由一些轻质、多孔的材料做成的,通常设置在屋顶的承重结构层与面层之间。( ) 保温层或隔热层的材料大都是由一些轻质、多孔的材料做成的,通常设置在屋顶的承重结构层与面层之间。( ) 分类:口腔执业医师 题型:单选题 查看答案
In need of money, Bob had to take__________ job that was off In need of money, Bob had to take__________ job that was offered to him. 分类:口腔执业医师 题型:单选题 查看答案