【正确答案】正确答案：As a basic unit of phonological study, phoneme is an abstract collection of phonetic features which can distinguish meanings.(2 points)A phoneme can be discovered by comparing words. For example, it is known that "bet" and "pet" are two English words, and they differ only in the initial sounds /b/and/p/, so /b/and/p/can be identified as two different phonemes.(4 points)

【答案解析】解析：考查音位。音位指一组语音特征的抽象组合，它是音系学研究的基本单位，也是区别意义的最小语音单位，“最小对立体测试”可用于确定音位。