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医学部 - 杏林大学

複雑系の制御・設計論グループ - Department of Precision Engineering

追跡調査報告書(平成22年度) 資料集 - 農研機構

2012年度研究年報【A4x108頁／PDF／約6100KB】

The Toltecs and Maya developed wheels for religious reasons but not for wheelbarrows or other practical uses The reason is that they had sufficient slave labor

3 月 29 日（木） March 29（Thu） 13

A voyage of discovery

2. Your Opinions on Environmental Problems

43号 - 信州大学
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