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Those companies knew they had a captive audience, so they bought up as many journals as they could. Journal articles aren’t interchangeable commodities like corn or soybeans—if your science supplier starts gouging you, you can’t just switch to a new one. Adding to this lock-in effect, publishing in “high-impact” journals became the key to success in science, which meant if you wanted to move up, your university had to pay up. So, even as the internet made it much cheaper to produce a journal, publishers made it much more expensive to subscribe to one.。业内人士推荐体育直播作为进阶阅读
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В рамках конфликта с Соединенными Штатами Америки Иран использовал «смертоносное оружие». Таким образом американская газета The New York Times (NYT) назвала дроны, поразившие множество военных объектов США.
早在 2000 年代初，Google 就曾大规模扫描图书馆馆藏，同样引发了长达十年的诉讼。最终法院认定Google 的做法属于「合理使用」，因为它只提供片段摘要，目的是引导读者找到书，而不是取代书本身。