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The Skeletal System
Laura Gilbert
出版The Rosen Publishing Group, Inc, 2000-12-15
主題Juvenile Nonfiction / Health & Daily Living / General
ISBN08239333859780823933389
URLhttp://books.google.com.hk/books?id=u2DgBfQQBXgC&hl=&source=gbs_api
EBookSAMPLE
註釋How does that soft lump of human flesh get out of bed every morning? How does it walk to school, work out in the gym, and carry its schoolbooks home every day? The skeletal system makes this all possible by providing a rigid framework of hard bones to support the soft tissues of the body and make movement possible.