- 问题详情:(2019·全国卷Ⅲ)Beforethe1830s,mostnewspapersweresoldthroughannualsubscriptionsinAmerica,usually$8to$10ayear.Today$8or$10seemsasmallamountofmoney,butatthattimetheseamountswereforbiddingtomostcitizens.Accordingly,newspaperswerereadalmostonlyby...
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