关于声现象下列说法不正确的是 A.�声体一定在振动b.�生体的材料结构不同声音的音色不同c.声音可以在真空中传播d.声音传播速度与 Template




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tomski关于声现象下列说法不正确的是 a.�声体一定在振动b.�生体的材料结构不同声音的音色不同c.声音可以在真空中传播d.声音传播速度与 coloring