溢出效应
参考答案：
技术扩散的溢出效应，即技术扩散的外部性
表现：
①技术领先企业的示范效应，技术落后企业的模仿效应
②人力资本的流动
③联系效应
结合所学知识，谈谈春秋战国时期“百家争鸣”形成的原因。
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My father sleeps four hours a day, eats too much meat but never eats fruit. He must be _________. [ ]
A. serious
B. unhealthy
C. athletic
D. intellectual.
