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世界上有三种主要的电视模式,一种是世界上多数国家采用的以广告为基础的私有私营的商业电视模式,一种是以收视费、执照费、公益资金为基础的部分国家采用的
There are three main modes of television in the world, one is the ad-based, private-owned commercial television model used in most countries in the world, and the other is adopted by some countries based on subscription fees, license fees and public funds