题目内容:
Classifications of vowels are made up of the followings EXCEPT__________.
A. the. position of the tongue B. the openness of the mouth C. the shape of the lip D. the width of the vowels
参考答案:
答案解析:
Classifications of vowels are made up of the followings EXCEPT__________.
A. the. position of the tongue B. the openness of the mouth C. the shape of the lip D. the width of the vowels