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Câu hỏi
Đáp án câu hỏi
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

Đáp án đúng là: D
Giải thích
collaborate /kəˈlæbəreɪt/
commercially /kəˈmɜːʃəli/
impractical /ɪmˈpræktɪkəl/
fluctuation /ˌflʌktʃuˈeɪʃən/