单项选择题

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.

Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1.17（）

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