发布时间:2025-02-04 02:29:33
【答案】:A
吊杆、龙骨的尺寸与间距应符合下列规定:①不上人吊顶的吊杆应采用不小于直径6mm的钢筋、M6全牙吊杆或直径不小于2mm的镀锌低碳退火钢丝;②上人吊顶的吊杆应采用不小于直径8mm的钢筋或M8全牙吊杆。
学校音乐教室的面积是82平方米用边长为08米的正方形瓷砖铺地120块够吗
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