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1D科學-第5.1C1章-能量轉換2

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1D科學-第5.1C1章-能量轉換2

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1D科學-第4.1C1章-細胞核內的DNA

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1D科學-第4.1C1章-細胞核內的DNA

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1D科學-第5.1C1章-能量轉換1

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1D科學-第5.1C1章-能量轉換1

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1D科學-第5.2C章-輻射

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1D科學-第5.2C章-輻射

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1D科學-第4.1A章-細胞

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1D科學-第4.1A章-細胞

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1D科學-第5.3A章-化石燃料

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1D科學-第5.3A章-化石燃料

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1D科學-第4.2E章-為人父母

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1D科學-第4.2E章-為人父母

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1D科學-第4.2F章-家庭計劃和控制生育

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1D科學-第4.2F章-家庭計劃和控制生育

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1D科學-第4.3A1章-遺傳

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1D科學-第4.3A1章-遺傳

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