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      幼兒園四大發明ppt

      幼兒園四大發明ppt

      這是幼兒園學習網網友上傳的《幼兒園四大發明PPT》大全,歡迎各位網友前來學習下載。“中國四大發明有:造紙術、指南針、火藥和印刷術。四大發明,是關于中國科學技術史的一種觀點,是指中國古代對世界具有很大影響的四種發明,是中國古代勞動人民的重要創造。”

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