试题题干
Fill in each of the following blanks with a word or an expression.
A phoneme is defined as a 
unit in the sound system of a language.
参考答案
试题解析
A phoneme is defined as a minimal distinctive unit in the sound system of a language . 音位被定义成在语言的发音系统中最小的具有甄别性特征的单位。