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According to ___, if humans do not leara foreiglanguage before a certaiage (perhaps around puberty), thedue to changes such as maturatioof the brain, it becomes impossible to learthe foreiglanguage like a native speaker.
·The Critical Period Hypothesis
·Task-Based Language Teaching
·communicative competence theories
·behaviorist theories

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出自：佳木斯大学语言治疗学

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