单选题 A vowel is different from a consonant in English because of
[A] absence of obstruction. [B] presence of obstruction.
[C] manner of articulation. [D] place of articulation.

【正确答案】 A

【答案解析】本题考查语言学常识。vowel(元音)与consonant(辅音)产生的根本区别是辅音的产生需要有an obstruction of the air stream(气流的阻碍)，而元音的产生则没有absence of obstruction(气流阻碍)。manner of articulation(发音方法)与place of articulation(发音部位)用来为辅音归类。