- 搜标题
- 搜题干
- 搜选项
单项选择题
/p/, /b/, /m/ and /w/ are produced with the help of __________.
A．the
tongue tip on or close to the alveolar ridge
B．the upper and lower lip
C．the tip of the tongue raised close to the hard palate
D．the upper teeth and inner lower lip
B．the upper and lower lip
C．the tip of the tongue raised close to the hard palate
D．the upper teeth and inner lower lip
