ClassificationofvowelsismadeupofthefollowingEXCEPT( )。
A.the openness of the mouth B.the position of the tongue C.the shape of the tip D.the width of the vowels正确答案D
ClassificationofvowelsismadeupofthefollowingEXCEPT( )。
A.the openness of the mouth B.the position of the tongue C.the shape of the tip D.the width of the vowels正确答案D
