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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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展览会策划与组织


系统讲解专业展览会的选题定位、选址、客户组织、营销及现场运营，涵盖风险、绿色化与数字化发展。
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环境学导论


系统阐述了人类与环境、可持续发展与环境保护的关系，主要内容涉及生态环境与环境问题、环境科学的生态学基础、水体污染及其防治、土壤污染及其防治、大气污染及其防治、固体废弃物污染及其防治。
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古生物学


通过化石探索生命起源、演化与地球—生命协同演化，涵盖寒武纪大爆发、登陆和大灭绝等关键历史。
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生物心理学


从细胞和分子机制出发，探索大脑如何产生行为、情绪、认知、成瘾与意识。
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恢复生态学


恢复生态学课程，立足社会重大需求，面向国际学术前沿，辅以实践教学基地，配备立体化教学媒介，培养具有强烈使命感与专业度的新时代人才！
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Optics

Builds modern optics from geometric imaging through wave phenomena, Fourier optics, lasers, and nonlinear optics with optical design simulation.
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大学物理（理，上）

面向非物理专业理科学生的大学物理基础课程，以力学、热学、波动和狭义相对论训练物理问题分析与求解能力。
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临床变态反应学


系统学习过敏性疾病的免疫机制、诊断与中西医协同防治，培养临床变态反应思维。
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电磁学


系统学习静电场、磁场、电磁感应、麦克斯韦方程组及电磁波等电磁学基本理论与问题分析方法。
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营养膳食与健康


围绕健康维护与疾病预防，讲解从营养素和食物选择到慢性病膳食管理的合理膳食方法。
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信息论与编码


第三批国家级一流本科课程，2023年度广东省一流本科课程
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国家审计理论与实务


结合真实案例，系统讲解国家审计理论、程序、方法及大数据技术，覆盖绩效、经济责任、资源环境和企业审计等专题。
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酒店经营管理


系统讲解酒店经营管理的理论、模式与战略实践，涵盖市场营销、人力资源、质量和财务管理。
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管理会计理论与实务


面向MPAcc研究生，系统学习以战略决策、管理控制和价值增值为导向的现代管理会计工具与方法。
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商业伦理


系统学习商业伦理基本理论、企业社会责任与伦理决策，聚焦营销、人力资源、领导力、可持续发展和数字时代的实践问题。
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