单项选择题:Classification of vowels is made up of the following EXCEPT( 题目分类:教师考试真题 题目类型:单项选择题 查看权限:VIP 题目内容: Classification of vowels is made up of the following EXCEPT( )。单项选择题 A、the openness of the mouthB、the position of the tongueC、the shape of the tipD、the width of the vowels 参考答案: 答案解析: