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Discover science: grade 4
Michael R. Cohen
出版
Glenview, Ill. : Scott, Foresman
, 1989
ISBN
0673420647
9780673420640
URL
http://books.google.com.hk/books?id=ggGAsZ5p3egC&hl=&source=gbs_api
註釋
Science content helps develop the skills needed to understand how science works, learn new concepts, solve problems, and make decisions in today's technological society.