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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.

Dhawal Shah Sep 03, 2026

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护理理论


在护理学科学化、专业化的发展道路中，护理理论犹如指路明灯始终发挥着导航性作用，护理理论给予护理工作者思想的启迪，指引我们前进的方向。
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医学遗传学


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护理质性研究


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钢结构设计原理


学习钢结构材料、连接、稳定性及基本构件的设计计算与构造方法。
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数据结构


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数据库系统原理与应用


系统讲解数据库原理，并以 MySQL 实践贯通表操作、SQL 编程、设计、安全、并发与恢复。
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计算机组成原理


系统讲解计算机硬件系统的组成、组织结构与工作原理，涵盖总线、存储器、输入输出、指令系统和CPU。
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中原文化（武术篇）

武术，以运动诠释智慧与境界，被誉为“国术”，是中国国粹。少林与太极，是中华武术的典型拳种，也是中原的文化符号。
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信息技术与教育应用


跟随信息技术最新应用，体验信息化教学环境，在真实性任务中，掌握信息技术操作，学会创造性的应用信息技术，学会用信息技术变革教与学。
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工程结构抗震设计


系统讲解多高层钢筋混凝土、砌体和钢结构的抗震分析与设计方法。
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急诊医学临床基础


围绕心肺脑复苏、危重症处置与多系统急症，培养研究生的急诊临床实践和科研基础。
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儿科在线课堂


系统学习儿童生长发育、营养、新生儿疾病及各主要系统常见儿科疾病，结合临床思维培训提升儿科实践能力。
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临床病理学


系统学习临床病理诊断流程、辅助检测技术及多系统疾病和肿瘤的病理分类与诊断。
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Selective Reading of Russian Literary Works

Изучите классику русской литературы от «Слова о полку Игореве» до «Тихого Дона»: анализ произведений Пушкина, Гоголя, Достоевского, Толстого, Чехова и Булгакова.
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制药分离工程


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