填空题 The idea of 1was first developed by Roman Jacobson (1896 - 1982) in the 1940s as a means of working out a set of phonological contrasts or oppositions to capture particular aspects of language sounds. (中山大学2011年研)
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【正确答案】 1、正确答案：distinctive features    
【答案解析】解析：区别性特征第一次由Roman Jacobson提出。