题海让大学四年没有难题
白天模式登陆

题目详情

单选题 The relative highness or lowness of sounds produced by the human voice is called __________

A. tone

B. pitch

C. quality

D. volume

默认课程课程封面

学科:默认课程

时间:2026-05-19 05:46:17

Copyright © 2022 津ICP备2021001502号