[多选题]在发生人身触电事故时，可以不经许可，立即断开有关设备的电源，但事后应立即报告（）。
A.工作许可人
B.工作负责人
C.值班调控人员
D.运维人员

Speaking in public is most people’s least favorite thing. The reason is that we’re all afraid of making fools of ourselves. The more important the speech is, the more frightened we become.
But stop biting your fingernails. Public speaking is easy and I can tell you that public speaking is not a "gift" like musical talent or being able to draw. Anybody who can talk can speak in public. Here are some of the lessons I have learned.
Keep it simple and short.
Your audience is going to come away with one or two of your main ideas. One or two. Not ten or twenty. If you can’t express in a sentence or two what you intend to get across, then your speech is not focused well enough. And if you don’t have a clear idea of what you want to say, there is no way your audience will.
Get organized.
No matter how long or short your speech is, you’ve got to get your ducks in a row how you’re going to open, w