问题
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The theory that the impact of a giant meteorite caused the extinction of the dinosaurs is
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0ur current theories of human exchange and enquiry have nothing to do with the ideas devel
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According to the comprehensive input theory, "i +1" refers toA.the current level of the le
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Which of the following statements is INCORRECT?A.Many online classes are currently at litt
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The Imput Hypothesis, one of the most famous theories among different models of language a
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Which of the following theories is NOT about the origin of language?A.Divine-origin theory
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