Economists think of knowledge, unlike physical goods, as "non-rival" : use by one person does not necessarily preclude use by others.
经济学家认为知识并不像有形产品，是具有非竞争性的：一个人使用并不会排除他人使用。
Economists think of knowledge, unlike physical goods, as "non-rival" : use by one person does not necessarily preclude use by others.
经济学家认为知识并不像有形产品，是具有非竞争性的：一个人使用并不会排除他人使用。
应用推荐