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中二數學第 1 章連比

By: chanyeeman, Views: 85

中二數學第 1 章連比

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加強同學對細菌的認識。

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細菌的繁殖方法

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細菌無處不在，與我們生活息息相關。

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預防病毒引起的疾病——疫苗注射

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近視、遠視、散光、白內障

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白居易生平

By: solaicheung, Views: 575

白居易生平

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歷史101 石油與中東

By: auchunlung, Views: 91

,,

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鏗鏘集 - 不願再為農(下)

By: chungholam, Views: 124

鏗鏘集 - 不願再為農(下)