there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns -- the ones we don't know we don't know." ...
5 Known knowns “there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns, the ones we don’t know we don’t know. And if one looks through...
Known Knowns, Known Unknowns, and Unknown Unknowns: Late 20th Century Archival Silences and the History of Medical Science in UgandaIn a study of changing practices of knowledge production at the Uganda Virus Research Institute (UVRI) since 1936, I have been confronted with the question of h...
there are known knowns,there are also unknown unknows. 相关知识点: 试题来源: 解析 有些事我们知道自己知道,不过也有些不可知的事我们并不知晓.出自《智慧拾零——拉姆斯菲尔德的存在主义诗集(Pieces of Intelligence :The Existential Poetry of Donald H.Rumsfeld)》 《不可知》(The Unknown)原... ...
Breastfeeding, breast-milk feeding, breast feeding, and IQ: unknown and known knowns. The Promotion of Breastfeeding Intervention Trial (PROBIT) Study Group1 is to be congratulated on acquiring much new data on the important but neglected to... Gordon,A Grant - 《Archives of General Psychiatry...
“known”和“unknown”在上图中作形容词,意思是“已知的”和“未知的”。 “knowns”在此处可理解为名词,“已知的事物”;“unknowns”在上图中作名词,“未知的事物”。 生活当中的大部分事情都可以归纳为这四类: ⓵ “已知的已知”,我们知道的并能理解的事物。 例如,我知道“一树梨花压海棠”出自苏轼之...
作者: 已经察觉到的已知风险(known Knowns) 尚未察觉到的已知风险(Unknown Knowns) 已经察觉到的未知风险(Known Unknowns) 没有察觉到的未知风险(Unknown Unknowns)
Known Knowns, Known Unknowns, Unknown Unknowns: The Predicament of Evidence-Based Policy Known knowns, known unknowns, unknown unknowns: the predicament of evidence-based policy. Am J Eval. 2011; 32 (4):518–46. doi: 10.1177/... R Pawson,G Wong,L Owen - 《American Journal of ...
that is to say we know there are some things we do not know . But there are also unknown unknowns — the ones we don't know we don't know .”（“我一向对尚未发生的事情的有关报道感兴趣，因为就像我们都知道的那样，有一些众所周知的事情；我们知道一些我们知道的事情。我们还知道...
The knowns, known unknowns and unknowns of sequestration of soil organic 介绍了最新土壤有机碳中问题,为以后研究提供了方向介绍了最新土壤有机碳中问题,为以后研究提供了方向隐藏>> Agriculture, Ecosystems and Environment 164 (2013) 80–99 Contents lists available at SciVerse ScienceDirect Agriculture, Ec...