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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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Arab-Islamic History: From Tribes to Empires
ODS en la Agenda 2030 de las Naciones Unidas: Retos de los Objetivos de Desarrollo Sostenible
Understanding Dementia
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XuetangX is an open online learning platform for Chinese students. It offers massive courses in multiple disciplines, with a mission to build an affordable, quality learning environment for everyone.
A practice-oriented course on measurement systems, sensor testing, and signal analysis for mechanical engineering, using MATLAB simulation and engineering testing applications.
Road alignment design course that embeds operating-speed and sight-distance checks to eliminate safety hazards at the source.
Learn CNC programming through process design, mathematical processing, lathe and milling examples, and hands-on simulation of tool setting and machining.
Foundational soil science course examining soil formation, properties, nutrient cycling, classification, and applications in agricultural and forestry practices.
A popular-science introduction to nuclear science and technology, covering its history, applications, radiation safety, facility safety, and non-proliferation.
Study how markets allocate scarce resources: analyze supply and demand, elasticity, consumer utility, short- and long-run costs, monopoly and oligopoly, externalities and public goods.
Work through finance's three pillars — optimization over time, asset valuation, risk management — using compounding, discounted cash flow rules, capital budgeting, and bond and stock valuation.
Learn the fundamentals of cultivating economically important Chinese seaweeds and applying safe production practices.
Explore everyday Chinese culture through authentic situations, from food and etiquette to heritage, beliefs, arts, language, and literature.
Explore the musicality of ancient Chinese poetry through singing, from The Book of Songs and Ch'u Tz'u to Tang poetry and Song Lyrics.
Based on The Analects and the results of literature and research findings, the course restores the true and rich charm of Confucius.
Develop academic English through agricultural and forestry writing, translation, and international scholarly communication.
This course will give students a comprehensive overview of the field of second language acquisition, including the second language acquisition process, various factors affecting second language development, and second language learning and teaching strat…
Compare Chinese and Western cultures through myths, aesthetics, literature, and food, tracing differences and shared points across cultural experience.
以筝为媒介,在简化演奏中赏析中国各地区、各民族的民歌、器乐、戏曲与说唱音乐。
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