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pro vyhledávání: '"王冠瑩"'
Autor:
Kuan-Ying Wang, 王冠瑩
92
Human relies on environment just similar to air and water. Before the eighteen centuries, people used natural resources by following natural rule. So it is enough to use. After the ninth teen centuries, people focus on developing economy grow
Human relies on environment just similar to air and water. Before the eighteen centuries, people used natural resources by following natural rule. So it is enough to use. After the ninth teen centuries, people focus on developing economy grow
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/14621314364123587530
