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(中文) 1-1磁鐵能吸引什么
(中文) 1-2磁鐵怎樣吸引物體
(中文) 1-3磁鐵的兩極
(中文) 1-4磁極與方向
(中文) 1-5做一個指南針
(中文) 1-6磁極間的相互作用
(中文) 1-7磁鐵和我們的生活
(中文) 2-1觀察我們的身體
(中文) 2-2通過感官來發(fā)現(xiàn)
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