_ is NOT included in the factors used in analyzing vowels.
- APosition of the tongue
- BShape of lips
- COpenness of the mouth
- DOpenness of the vocal cords
搜答案，更轻松！
_ is NOT included in the factors used in analyzing vowels.
考查影响元音分类的因素。元音之间的区别主要是在四方面:一是舌头抬起的高度--高、中、低，二是舌头最高部分的位置一一前、中、后，三是元音的长度或紧度一一长元音和短元音，四是唇的圆展度一一圆唇、非圆唇。元音的区别跟声带无关。