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Chasing 100M Daily Users, Duolingo Reconsiders Ads, Paying Influencers, and Its Most Expensive Plan

AI got cheap enough that Duolingo’s most expensive plan may not survive it. I read the earnings call transcript and opened the app to see what is actually changing for learners.

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好助教是怎样炼成的


Discover effective strategies and practical tips for becoming an outstanding teaching assistant through peer experiences and expert insights from Tsinghua University's training program.
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研究生学术与职业素养讲座（二）

本课程将清华大学研究生学术与职业素养讲座以MOOC形式发布于学堂在线平台，希望能帮助学生们提升学术素养、职业修养、创新创业意识等方面的综合素质。
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保育师国家职业技能标准编制说明


本次直播围绕人社部《保育师国家职业技能标准》（2021年版）的起草工作，介绍相关背景和工作过程，解读保育师的职业定义、技能等级、报名条件、鉴定方式、工作要求和考核权重等内容。
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创业导引——与创业名家面对面


创投圈的成功导师程方、郭宇航、李竹、林森、罗键霆、马东、沈博阳、盛希泰、吴朝阳、杨歌、朱波等大咖和同学们坐而论道，全力打造未来的创新创业之星。
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公共危机管理


风险与危机无处不在，无时不有！如何认知、准备与应对有关风险与危机，促进公共组织和社会平稳运行与安全发展，非常需要大家一起探讨危机管理之道。
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营销：人人都需要的一门课


营销是企业核心的竞争力，也是人人都需要的一项能力。不管你是谁，不论你营销的是什么。
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会计学原理


【国家精品课】学习会计学原理可以了解和熟悉会计这种国际通用的商业语言，完善自己的知识结构体系，还可以为深入学习会计学其他课程打下基础。
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社会研究方法


介绍社会科学研究的基本流程，涵盖研究设计、选题、抽样、问卷、观察与访谈，并指导撰写研究计划书。
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不朽的艺术：走进大师与经典


【国家精品课】以历史为经线，中外比较为纬线，以文化解读为主导，引导修课学生欣赏和理解中西艺术史发展中最伟大的大艺术家及其不朽艺术杰作的美学特征和文化精神意蕴。
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现代生活美学——插花之道


追寻天人合一哲学理念，梳理中国插花、日本花道以及西方花艺史；实用插花技巧、植物、色彩、插花造型等；关注内心体验，平衡心理，培育优雅生活方式。
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生活、艺术与时尚：中国服饰七千年


从中国服饰七千年演变出发，连接服装史与时装设计，探索传统服饰元素转化为现代时尚的路径。
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视觉传达设计思维与方法


注重逻辑思维与逆向思维并重的教学。以设计哲学、研究型设计与跨界设计、格律设计为宏观视点，掌握针对性选择何种设计思维与设计方法展开实践能力。
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审美的历程


以审美形态的历史演变为线索，考察从原始社会到社会主义时期的艺术与时代精神。
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艺术的启示


如果有这样一门课程，它既不是艺术史课，也不是艺术创作课，但却能够让我们渴望了解艺术的历史、情愿参与艺术的创作，这门课程就是《艺术的启示》。
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图案审美与创作


【国家精品课】本课程提供图案感受美、提炼美、表现美的过程体验。学习图案可以了解历史，感受时代的脉搏。您将获得艺术创作思维的拓展与适合自己的图案创作方法。
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