问题描述：
一道英语语言学选择题,
a(n) ____ is capable of distinguishing one word or one shape of a word from another in a given language.
A allophone B allomorph C phoneme D phone
a(n) ____ is capable of distinguishing one word or one shape of a word from another in a given language.
A allophone B allomorph C phoneme D phone
问题解答：
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