【判断题】根据《国家电网公司变电运维管理规定》,误拉隔离开关时,当主触头刚刚离开即发现电弧产生时应立即合回,查明原因。如隔离开关已经拉开,禁止再合上。
【判断题】Bill and Laurent are talking about business during the meal. Watch the video clip and decide whether the following statements are true or false. 1. Laurent needs to find a new supplier to replace Bi...
【判断题】房屋建筑室内装饰装修施工图中,指北针应绘制在房屋建筑室内装饰装修整套图纸的第一页上,并应位于明显位置。
【判断题】操作隔离开关时,一旦发生带负荷误分隔离开关,在刚拉闸时即发现电弧,应立即合上,停止操作。
【多选题】误拉隔离开关时,当主触头刚刚离开即发现电弧产生时应()合回,查明原因。如隔离开关已经拉开,()再合上。
【单选题】Directions: Alice comes to see Mr. Burner. Watch the video clip and choose the correct answer to each question. u05p41.mp3: (1) What does Mr. Burner's company mainly deal with?