26, 细节题 D its content acquisition cost nothing
根据题干中关键词a licence to print money because ,定位到第一段第二句，其他科学家也免费进行同行评议的专门工作，因为它是获得地位和生产科学知识的核心要素。正确选项D，acquisition原词， for free替换选项中的，cost nothing.
27, 细节题 A thrived mainly on universities libraries
根据题干关键词Elsevier定位到第三段第一句话，The Dutch giant Elsevier, ....made profits of more than 490m last year. while UK universities alone spent more than 210m in 2016,该公司去年利润超过4.9亿英镑 然而仅英国大学在2016年就花费了超过2.1亿英镑。正确选项A 主要依靠大学图书馆 为定位句的同意表达
28态度题 B concerned
根据题干中关键词Sci-Hub的成功定位到第四段第二句， The success of Sci- Hub, .... have themselves legally accessed shows the legal ecosystem has lost legitimacy among its users and must be transformed so that it works for all participants这表明法律生态系统在其用户中已经失去了合法性，必须进行改造，以便为所有参与者服务. 可见作者对于Sci- Hub的成功采取否定态度，正确选项B concerned担忧，担心。A relieved宽慰的，C puzzled困惑的属错误选项， D encouraged鼓励的，正反混淆
29推断题 A allow publishers some room to make money
根据题干关键词open access定位到第四段，最后一句 ...so that the publishers can make a profit before...,合理收取费用是未来出版商能够获利，A选项为同义替换。B render publishing much easier for scientists使发表对科学家来说容易得多 .C reduce the cost of publication substantiality 降低出版成本 D. free universities from financial burdens使大学摆脱财政负担
30 细节题 D the few feed on the many
根据题干关键词scientific publishing model定位到最后一段第五句，labour is provided places free in exchange for the hope of status, while huge profits are made by a few big firms who run the market places.劳动力被免费提供，以换取地位的希望，而一些经营市场的大公司则获得了巨额利润。 可知少部分作者免费劳动，大部分公司盈利，A选项为同义替换