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заметки профессионального преподавателяSat, 21 Nov 2009 23:44:26 +0000en-US
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1 https://wordpress.org/?v=5.7.15КСТАТИ О ПТИЧКАХ: Оптимальная частота и продолжительность занятий
https://www.englishlab.net/journal/2009/11/22/frequency-and-duration-of-foreign-language-lessons/
Sat, 21 Nov 2009 23:43:18 +0000http://www.englishlab.net/journal/?p=787