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