ISBN: 978-75-10458-89-7 // ISBN: 978751045889Year of publication: 2016Publisher: New World PressNumber of pages: 185Languages: Chinese, EnglishCountry of origin: China
ISBN: 978-7-301-30764-9 // ISBN: 9787301307649Year of publication: 2020Publisher: Peking University PressNumber of pages: 225 (Main book) + 286 (Workbook)Language: Chinese, EnglishCountry of origin: China
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