问题描述：
Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.()
1个回答
分类：学历考试
2024-04-26 13:20:08
问题解答：
问题反馈
问题描述：
Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.()
问题解答：
问题反馈
