Newspapers had been present in North America since the 18th century, but now, because compulsory public education helped raise literacy levels, newspapers were everywhere, with major cities having several. The revenues of the newspaper industry came not only from circulation but frequently from advertising: the advertising agency became a fixture of business life. Newspapers and advertising agencies had a common emphasis that distinguished them from other enterprises: the product they sold was information. The development of new entrepreneurial activities was greatly facilitated as a result of technical improvements in transportation and mass communication.
📝 题目要求
找出文本中的逻辑关系词,并写出对应的逻辑类型
找出文本中的逻辑关系词；并写出所对应的逻辑类型：
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✅ 参考答案与解析
but：转折 because：因果 not only...but：并列 and：并列 as a result of：因果 and：并列 but ：转折（对比18世纪报纸存在的状态与当下的普及情况） because：因果（解释报纸普及的原因是义务教育提升了识字率） not only...but：并列（并列说明报纸行业收入的两个来源） and：并列（连接报纸和广告公司两个主体，表并列关系） as a result of：因果（说明创业活动发展的原因是交通和大众传播的技术改进） and：并列（连接“transportation”和“mass communication”两个技术改进领域，表并列关系）