涉及全文
段1：①It used to be so straightforward...
段2：①No longer. ②The Internet—and pressure from funding agencies, who are questioning why commercial publishers are making money from government-funded research by restricting access to it—is making access to scientific results a reality... ⑥It signals a change in what has, until now, been a key element of scientific endeavor.
段3：①The value of knowledge and the return on the public investment in research depends, in part, upon wide distribution and ready access. ②It is big business...
段4：①This is now changing. ②According to the OECD report, some 75% of scholarly journals are now online. ③Entirely new business models are emerging; three main ones were identified by the report’s authors. ④There is the so-called big deal, where institutional subscribers pay for access to a collection of online journal titles through site-licensing agreements. ⑤There is open-access publishing, typically supported by asking the author (or his employer) to pay for the paper to be published. ⑥Finally, there are open-access archives, where organizations such as universities or international laboratories support institutional repositories. ⑦Other models exist that are hybrids of these three, such as delayed openaccess, where journals allow only subscribers to read a paper for the first six months, before making it freely available to everyone who wishes to see it. ⑧All this could change the traditional form of the peer-review process, at least for the publication of papers.
30.Which of the following best summarizes the text?
[A]The Internet is posing a threat to publishers.
[B]A new mode of publication is emerging.
[C]Authors welcome the new channel for publication.
[D]Publication is rendered easier by online service.
答案：B
问：A选项不适合作为本文标题的原因是什么？
A : 原文只在段2句②和句④提到“网络的发展正使得人们能够自由获取科学研究成果，而这让出版商感到心情沉重（makes heavy reading for publishers）”，但文章的重点并非出版商受到威胁，选项无法覆盖全文
B : 文章并未提及选项中的内容，选项无中生有
C : 选项不符合文章的积极方向
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