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决定声音音调的是A.声音的传播速度B.声音的振动幅度C.声音的频率D.振动物体本
决定声音音调的是A.声音的传播速度B.声音的振动幅度C.声音的频率D.振动物体本
发布时间:2020-08-03 13:18:36
决定声音音调的是A.声音的传播速度B.声音的振动幅度C.声音的频率D.振动物体本身
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C
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