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In modern linguistics, speech is regarded as more basic than writing, because （）
A:in linguistic evolution, speech is prior to writing
B:speech plays a greater role than writing in terms of the amount of information conveyed
C:speech is always the way in which every native speaker acquires his mother tongue
D:All of the above

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出自：教师招聘考试（中学英语）学科专业知识

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