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题目内容
（伊犁师范-英语语音）
、/p/, /b/, /m/ and /w/ are produced with the help of () .
A . the upper teeth and inner lower lip
B . the tip of the tongue raised close to the hard palate
C . the upper and lower lip
D . the tongue tip on or close to the alveolar ridge
A . the upper teeth and inner lower lip
B . the tip of the tongue raised close to the hard palate
C . the upper and lower lip
D . the tongue tip on or close to the alveolar ridge
参考答案