课件公开预览：2026.09.22 · 筹备中，未举办Lesson preview published: 2026.09.22 · In preparation, not a completed event
调节报警门槛、重新算成本、辨别用户需求证据。Adjust an alarm threshold, recalculate costs and examine evidence of user demand.
这套课件共有 24 页。先作出自己的判断，再动手操作教学模型、比较证据，最后记录下一步要核实的问题。可以从下面的入口直接体验。This 24-slide lesson starts with your own judgment, then a hands-on teaching model and an evidence comparison. Finish by recording what to check next. Open the lesson below to try it.
这是课件预览，不是已举办活动的报道。案例与数据为原创教学示意，非真实参赛成果。输入留在当前页面，刷新清空；可下载个人复盘。公开预览不改变产品套餐或插件发行权限。This is a lesson preview, not a report of a completed event. Cases and data are original teaching examples, not competition results. Inputs remain in the page and clear on refresh; reflections can be downloaded. Previews do not change product entitlements or plugin release permissions.