引用第19樓goodpethk111於2009-11-03 19:08發表的“”: 聽日要測e幾課 - what is economics - the three basic economic problems - ownership of firms - production and division of labour .......
引用第19樓goodpethk111於2009-11-03 19:08發表的“”: 聽日要測e幾課 - what is economics - the three basic economic problems - ownership of firms - production and division of labour .......