试题题干
Fill in each of the following blanks with a word or an expression.
In phonetics and phonology, 
refers to an identifiable movement or level of pitch that is used in a linguistically contrastive way.
参考答案
试题解析
在语音学和音系学中，声调是指以语言对比的方式使用的可识别的移动或音高的程度。