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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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新闻摄影


掌握基本的摄影技能，了解图片新闻的工作方式，训练对生活的观察和热爱，发展对图像的审美和批评能力，以及，培养一个终身的爱好。
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中国是传承千年的礼仪之邦，中国文化的核心是礼。本课程将枚举一些文献材料，再辅之以一些分析举例，深入浅出地讲授中国古代礼仪文明的基本框架。
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中国古代礼义文明——礼制


讲授中国古代礼义文明的基本框架，使学生在了解中华传统礼义的过程中培养人文情怀，塑造优秀品格，关心社会民生，进而在日常生活中践行礼与义。
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出土文献的新发现


聚焦青铜器铭文、战国文字与秦汉简帛，介绍出土文献的发现、整理、释读及其历史研究。
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Japanese Culture and Language (I)

Do you have interests in the Japanese life styles and their national cultures? Do you have the ambition to grasp some basic Japanese quickly?Then this is the course for you.
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人文清华云讲坛之《国家元气全在风俗》

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