填空题 1 is a unit of expression that has universal intuitive recognition by native speakers, whether it is expressed in spoken or written form.
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【正确答案】 1、正确答案：Vocabulary    
【答案解析】解析：(考查词汇的概念)词汇是一个表达单位，无论是通过口语还是书面语来表达，它在母语者中都能被广泛而本能地识别。