Vibration of the vocal cords results in quality of speech sounds

Vibration of the vocal cords results in quality of speech sounds called voicing,which is a feature of ______. ()
A、all consonants
B、vowels only
C、all consonants and some vowels
D、all vowels and some consonants
【正确答案】：D
【题目解析】：(P18):当声带拉紧,气流以不同的速度强行通过的时候就会使声带颤动。这种声带的颤动导致一种语音音色的产生______“浊音”,这是所有元音和诸如[b],[z],[m]之类的辅音所共有的特征。