The gravity model explicitly relates flows between zones to interzonal impedance to travel.
重力模型明确
通过地区间
阻抗来将分布量和小区联系起来。
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年英语专八听力真题 It seems that we use our language, not just to cooperate, but to draw rings around our cooperative groups and to establish identities, and perhaps to protect our knowledge and wisdom and skills from being stolen from outside.
似乎我们使用语言,不仅仅是为了合
,而且是为了围绕我们的合

建立联系,建立身份,也许是为了保护我们的知识、智慧和技能不被外界窃取。
年考研英语阅读选择真题(英语一)
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