高压检修工作的停电必须将工作范围的各方面进线（），且各方面至少有一个明显的断开点。
参考答案：电源断开
A project manager needs to assess qualify on the project. To do so, he wants to measure the height of each table produced. However, that would be too expensive. In this case, it would be BEST to use ______ .
A．benchmarking
B．a sample
C．a control chart
D．a Pareto diagram
电收尘爆炸的主要原因是（）。
A、物料没完成烧结反应
B、二次风量不足
C、窑皮脱落
D、燃料燃烧不完全
