一个月怎么快速减肥:Some questions about waves

来源：百度文库 编辑：高考问答 时间：2024/05/14 20:25:21
能穿过水的表面的波是什么波（答案要英文的）
在空气中波动的波是什么波（答案要英文的）
什么波可以穿过真空（答案要英文的）

光波：linght-wave
声波：sound-wave

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