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Watch Later 2:11

1D科學-第4.1C1章-細胞核內的DNA

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1A_IS_Ch4.2_Female reproductive system_P.33

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1E_科學_Ch4.2_女性生殖系統 P.33

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1A_IS_Ch4.2_Male reproductive system(P.31-32)

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1E_科學_Ch4.2_男性生殖系統 (P.31－32)

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1A_IS_Ch4.2_Human sex cells( sperms and ova)_P.29-30

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1E_科學_Ch4.2_人類性細胞(精子及卵)_P.29－30

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1A_IS_Ch4.1_cell division_ P.22－23

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1E_科學_Ch4.1_細胞分裂 P.22－23

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