| 1. | The relatively short [ a ] of mat and the relatively long [ a ] of mad are allophones
单词中较短的和单词中较长的是音素的变形。
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| 2. | The different which can represent a phoneme in different phonetic environments are called the allophones of that phoneme
音位是音系学研究的单位，是抽象的概念，每一个音位是一组语音特征的集合体，音位具有区别意义的作用。
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| 3. | The d yiffe cnt which can represent a phoneme in - ifferent lphonetic environments arue called the allophones of that phoneme
音位变体是一个音位在特定的语音环境力的具体体现，同一音位圆煌?镆艋肪忱锾逑治?同的变体，也就是语音。
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| 4. | The different which can represent a phoneme in different phonetic environments are called the allophones of that phoneme
音位变体是一个音位在特定的语音环境力的具体体现，同一音位在不同语音环境里体现为不同的变体，也就是语音。
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| 5. | The different phones which can represent a phoneme in different phonetic environments are called the allophones of that phoneme
音位变体是一个音位在特定的语音环境里的具体体现，同一个音位在不同的语音环境里体现为不同的变体，也就是语音。
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| 6. | They might form a contrast if they are two distinctive phonemes , or they do not form a contrast in meaning if they are allophones of the same phoneme
两个相似的语音如果是两个区别性音位，它们在意义上形成对立，如果是同一音位的变体，在意思上不形成对立。
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| 7. | Honesty policy for problem sets : general discussion of the assignments with other students is acceptable and encouraged ( e . g . " remind me , how do i know if something is an allophone ?
习题的诚实政策：和同学讨论作业是可接受且被鼓励的（例如“再跟我讲一次，怎样算是同位音？ ” ）
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