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4.3_2_網上交友

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4.3_2_洩密者

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4.3_1_資訊新時代

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4.3_1_資訊處理及演示

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4.3_1_知識產權及私隱權

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4.3_1_沉迷上網

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4.2_4_呼吸博士實驗室(身體的奧秘──呼吸系統篇)

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4.2_3_風雲變色

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4.2_3_科學馬戲團

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