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  3. Each scientific specialty has its own set of journals. Physicists have Physical Review Letters, cell biologists have Cell, neuro

Each scientific specialty has its own set of journals. Physicists have Physical Review Letters, cell biologists have Cell, neuro

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问题     Each scientific specialty has its own set of journals. Physicists have Physical Review Letters, cell biologists have Cell, neuroscientists have Neuron, and so forth. Science and Nature, (1)_____, are the only two major journals that (2)_____ the complete range of scientific (3)_____. As a result, journalists look (4)_____ them each week for the (5)_____ of new science papers. And scientists look to the journals (6)_____ to reach journalists. Why do they care? Competition for (7)_____ has gotten so fierce that scientists have sought popular (8)_____ to gain an advantage over their (9)_____. Publication in specialized journals will win the honor of academics and satisfy the publish-or-perish (10)_____, but Science and Nature come with the added bonus of potentially getting your paper written up in The New York Times and other publications.
    Scientists are also trying to (11)_____ other scientists through Science and Nature, not just the public. The line between popular and professional notoriety is not (12)_____. Scientists tend to pay more attention to the Big Two than to other journals. (13)_____ more scientists know about a particular pa per, they are more apt to cite it in their own papers. Being often-cited will increase a scientist’s "Impact Factor", a measure of how often papers are cited by (14)_____. Funding agencies use the Impact Factor as a (15)_____ measure of the influence of scientists they are considering supporting. (16)_____ Science and Nature papers have more visibility, the number of’ submissions is growing, say the editors. Nature now gets 10,000 (17)_____ a year, and that figure is rising, says editor-in-chief Philip Campbell via email. In his opinion, this partly reflects the increase (18)_____ scientific activity around the word. It also (19)_____ reflects the increasing and sometimes (20)_____ emphasis amongst funding agencies and governments on publication measures, such as the typical rates of citation of journals.
选项 A、Since
B、However
C、Because
D、Due to
答案C
解析 逻辑衔接题。从结构上分析，本句应为主从复合句，主句大意为：《自然》和《科学》杂志收到的投稿越来越多，从句提到"这两大杂志受注目的程度更高"，由句意判断，主从句为因果关系，因此选Because，引导原因状语从句，表示直接原因。Since虽然也有表示"因为"的含义，但语气较弱，多含有"既然"的含义，如：Since you’re not interested，I won’t tell you about it．既然你不感兴趣，那我就不告诉你了；However意为"然而，可是"；due to意为"由于，应归于"，但为介词短语，不可引导从句。
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