Thursday, September 22, 2022
Monday, September 19, 2022
问题:保护对象有很大开口或无法形成密闭空间的场所可采用()。...
Tuesday, September 20, 2022
问题:下列关于水系统回水温度一致性检测的说法正确的是()...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:特别潮湿场所或导电良好的地面上,若工作地点狭窄,行动不方便,行灯的电压不得超过( )。...
Thursday, September 15, 2022
问题:基础与墙身使用不同材料时,计算规则正确的( )。...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:在实际工作中常用( )来大致测定矿物的相对硬度。...
Thursday, September 22, 2022
问题:下列网络互连设备中,()有两大典型功能,即数据通道功能和控制功能。...
Friday, September 16, 2022
Monday, December 19, 2022
Thursday, September 22, 2022
Sunday, September 18, 2022
问题:多选题变形缝的种类包括( )。A伸缩缝B沉降缝C防裂缝D防潮缝...
Friday, October 28, 2022
Thursday, September 15, 2022
问题:()是利用碳棒与工件之间产生的电弧将金属熔化,并利用压缩空气将其吹掉,实现切割的方法。...
Wednesday, September 14, 2022
问题:对焊是利用()加热将两工件沿整个断端面同时焊接起来的一类电阻焊方法。...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:明敷的避雷带、网及引下线,转弯处应成圆弧状,不得形成()。...
Friday, September 16, 2022
Thursday, September 22, 2022