题目内容
完成下列句子
当你对着电话机讲话时,你的声波变成了电讯号。
When you speak into the telephone, ________ ________ ________ of your voice are turned ________ electrical signals.
答案:the,sound,waves
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题目内容
完成下列句子
当你对着电话机讲话时,你的声波变成了电讯号。
When you speak into the telephone, ________ ________ ________ of your voice are turned ________ electrical signals.