Sound: A Question and Answer Book-这本书不错哟,强烈推荐!


Sound: A Question and Answer Book

作者 (Author) Bayrock, Fiona
等级 (MML) MM LEVEL: 4.5
年级 (IL) Lower Grades (LG K-3)
字数 (Words) 1897
类型 (Fiction) Non-Fiction
书号 (ISBN) 9780736854498
系列 (Series) Fact Finders; Questions and Answers: Physical Science;
This book uses a question-and-answer format to introduce the concepts of sound waves, vibration, and energy and explains how humans perceive and produce different sounds.

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