Of the three branches of phonetics, the longest established, and until recently the most highly developed, is（）phonetics.A、auditoryB、acousticC、articulatoryD、none of the above three
题目
Of the three branches of phonetics, the longest established, and until recently the most highly developed, is（）phonetics.
- A、auditory
- B、acoustic
- C、articulatory
- D、none of the above three