F.3 biology 消化系統 - 消化液

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    t1706

    By: t1706

    Date Uploaded: 05/02/2018

    Tags: F.3 biology  

    F.3 biology 消化系統 - 消化液 不同消化液的成份及功能 蠕動 - 讓食物和消化液混合 - 增加消化道壁與己消化的接觸,促進食物的吸收

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