题目 8.使用GoldWave软件打开某音频文件,其编辑界面如图所示。数鸭子-少儿歌曲.wav00:00:0000:00:0500:00:1000:00:1500:00:2000:00:2500:00:3000:00:3500:00:4000:00:4500:00:5000:00:5500:00:0000:00:0500:00:1000:00:1500:00:2000:00:2500:00:3000.00:3500:00:4000:00:4500:00:5000:00:55左声...