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翰林國小自然4下1-3
影音
4下目次
CH1
1-1
1-2
1-3
CH2
2-1
2-2
2-3
CH3
3-1
3-2
3-3
CH4
4-2
4-3
P15【生活裡的科學】不變應萬變的彈力
24'00
P16【生活裡的科學】液體浮力
24'00
P19【生活裡的科學】善用科學"泳"往直前
24'00
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