专项练习:2021年考研英语基础模拟题(六十一)

发布时间:2020-10-26


英语是考研初试当中比较拉分的科目,历来令不少考生又爱又恨。许多考生的英语都有很大的进步空间,因此英语该如何学就成为了众多考生关心的重点。想要学好英语,实战经验很重要。下面,51题库考试学习网为大家带来考研初试英语科目的一些模拟试题,正在备考的小伙伴赶紧练起来吧。

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The journal Science is adding an extra round of statistical checks to its peer-review process, editor-in-chief Marcia McNutt announced today. The policy follows similar efforts from other journals, after widespread concern that basic mistakes in data analysis are contributing to the irreproducibility of many published research findings.

① “Readers must have confidence in the conclusions published in our journal, writes McNutt in an editorial. Working with the American Statistical Association, the journal has appointed seven experts to a statistics board of reviewing editors (SBoRE). Manuscript will be flagged up for additional scrutiny by the journals internal editors, or by its existing Board of Reviewing Editors or by outside peer reviewers. The SBoRE panel will then find external statisticians to review these manuscripts.

Asked whether any particular papers had impelled the change, McNutt said: The creation of the statistics board was motivated by concerns broadly with the application of statistics and data analysis in scientific research and is part of Sciences overall drive to increase reproducibility in the research we publish.

Giovanni Parmigiani, a biostatistician at the Harvard School of Public Health, is a member of the SBoRE group. He says he expects the board to play primarily an advisory role.”③ He agreed to join because he found the foresight behind the establishment of the SBoRE to be novel, unique and likely to have a lasting impact. This impact will not only be through the publications in Science itself, but hopefully through a larger group of publishing places that may want to model their approach after Science.

John Ioannidis, a physician who studies research methodology, says that the policy is a most welcome step forward and long overdue.”② “Most journals are weak in statistical review, and this damages the quality of what they publish. I think that, for the majority of scientific papers nowadays, statistical review is more essential than expert review, he says. But he noted that biomedical journals such as Annals of Internal Medicine, the Journal of the American Medical Association and The Lancet pay strong attention to statistical review.

Professional scientists are expected to know how to analyze data, but statistical errors are alarmingly common in published research, according to David Vaux, a cell biologist. Researchers should improve their standards, he wrote in 2012, but journals should also take a tougher line, engaging reviewers who are statistically literate and editors who can verify the process. Vaux says that Sciences idea to pass some papers to statisticians has some merit, but a weakness is that it relies on the board of reviewing editors to identify the papers that need scrutiny in the first place.

31. It can be learned from Paragraph 1 that _______.

[A] Science intends to simplify its peer-review process

[B] journals are strengthening their statistical checks

[C] few journals are blamed for mistakes in data analysis

[D] lack of data analysis is common in research projects

32. The phrase flagged up (Para. 2) is the closest in meaning to_______.

[A] found

[B] marked

[C] revised

[D] stored

33. Giovanni Parmigiani believes that the establishment of the SBoRE may _______.

[A] pose a threat to all its peers

[B] meet with strong opposition

[C] increase Sciences circulation

[D] set an example for other journals

34. David Vaux holds that what Science is doing now _______.

[A] adds to researchers workload

[B] diminishes the role of reviewers

[C] has room for further improvement

[D] is to fail in the foreseeable future

35. Which of the following is the best title of the text?

[A] Science Joins Push to Screen Statistics in Papers

[B] Professional Statisticians Deserve More Respect

[C] Data Analysis Finds Its Way onto Editors Desks

[D] Statisticians Are Coming Back with Science

参考答案:31. B 32. B 33. D 34. C 35. A

以上就是51题库考试学习网为大家带来的全部内容,希望能给大家一些帮助。51题库考试学习网提醒:在最后阶段,调整自己的心态也是非常重要的,每年都有考生临考前放弃,所以小伙伴们要注意不要给自己太大的压力哦。另外,小伙伴们如果还有其他关于考研信息的疑问,也可以留言咨询哦。


下面小编为大家准备了 研究生入学 的相关考题,供大家学习参考。

规模报酬

答案:
解析:
规模报酬是指在其他条件不变的情况下,企业内部各种生产要素按相同比例变化时所带来的产量变化。规模报酬分析的是企业的生产规模变化与所引起的产量变化之间的关系。企业只有在长期内才可能变动全部生产要素,进而变动生产规模,因此,企业的规模报酬分析属于长期生产理论问题。 企业的规模报酬变化可以分为规模报酬递增、规模报酬不变和规漠报酬递减三种情况。其中,产量增加的比例大于各种生产要素增加的比例,称为规模报酬递增;产量增加的比例等于各种生产要素增加的比例,称为规模报酬不变;产量增加的比例小于各种生产要素增加的比例,称为规模报酬递减。

天台乌药散中加入适量的

A.黄酒
B.苦酒
C.白酒
D.清酒
答案:A
解析:
天台乌药散用法:巴豆与川楝子同炒黑,去巴豆,水煎取汁,冲入适量黄酒服。

Hp的临床根除标准是指


A.抗Hp治疗结束后复查Hp病理组织学染色阴性
B.抗Hp治疗结束后Hp尿素酶试验阴性
C.抗Hp治疗结束至少停药4周后复查13C呼气试验(-)
D.抗Hp治疗结束至少停药4周后复查Hp病理组织学染色阴性
答案:C,D
解析:

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