按照单元音韵母、纯元音复合韵母和鼻韵尾复合韵母的分类，统计了三类韵母中的偏误比率，分析了偏误率较高的几类偏误的原因。

<em>Monophthong</em> vowels, compound vowels and nasal terminal vowels as well as the rates of every error type and the causes of the high-rate types have been discussed.

方法对52例腭裂病人的普通话声母和单元音韵母采用传统语音学听音、记音的方法进行比较分析。

Method The initial consonants and simple vowels of a Chinese syllable of 52 patients with cleft palate were analyzed by the means of conventional phonetics.

分析中国朝鲜族朝鲜语单元音的声学特征具有特殊意义。

Study on acoustic features of Korean Monophong produced by ethnic Koreans in China has special significance.

单元音后面跟着辅音的时候，最后的字母还要双写吗? ?。

Didd the double consonant after a single vowel go too?