Duolingo English Test - Wikipedia
https://en.wikipedia.org/wiki/Duolingo_English_Test
WebDuolingo English Test. The Duolingo English Test (DET) is a standardized test of English language (similar to TOEFL, IELTS, and TOEIC ), designed to be internet- rather than paper-based. DET was developed by Duolingo and grew in popularity and acceptance at universities during the COVID-19 pandemic. [1] .
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