单选题 2.All the back vowels in English are pronounced with rounded-lips,i. e. rounded,EXCEPT______.
【正确答案】 A
【答案解析】考查语音学知识。按发音时的唇形可将元音分为圆唇音(rounded vowels)和非圆唇音(unrounded vowels)。圆唇音包括[:],[],[u:],[u];非圆唇元音包括[i:],[i],[e],[],[a:],[∧],[3:],[