Which are bigger, CD players or MP3 Players? ________________________________

游客2024-07-10  17

问题 Which are bigger, CD players or MP3 Players?
   _________________________________.
[br] What is the MP3 format?
   It is a very efficient compression(压缩) system for_________________________________.

选项

答案 music files

解析 第三段第一句话说到MP3的格式是一个存放音乐文件的压缩系统。
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