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.
29.With the open-access publishing model, the author of a paper is required to
[A]cover the cost of its publication.
[B]subscribe to the journal publishing it.
[C]allow other online journals to use it freely.
[D]complete the peer-review before submission.
答案：A
问：根据原文中的哪几句话可以得出29题的正确答案？
A : 段4句③
B : 段4句⑤
C : 段4句⑦
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