書籍詳情
格式
平裝書
頁數
24
語言
英語
已出版
Apr 1, 2004
出版商
Lerner Pub Group
ISBN-10
0822551349
ISBN-13
9780822551348
描述
What is a pulley? A push or pull is a force that makes something move, or stops it from moving. Explore the power of a simple push in this informative book.