牛和蚊子的叫声比较,谁的音调高,谁的响度大呢?-学生作业帮-兵器谱
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牛和蚊子的叫声比较,谁的音调高,谁的响度大呢?

来源:学生作业帮 编辑:作业帮 时间:2019/05/23 23:22:29

牛和蚊子的叫声比较,谁的音调高,谁的响度大呢?

牛叫声响度大,音调低;蚊子叫声响度小,音调高.

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