当Sources既是Primary Sources又是Secondary Sources时 来源通常不属于一成不变的类别,因此有时来源既可以是主要来源,也可以是次要来源。 当涉及主要和辅助资源时,请再次考虑该资源的内容以及您使用该资源的目的。 这是两个例子。 Example #1: Documentaries 纪录片通常包含历史照片和/或视频(它们是主要来源)。
Sources fall into two main categories: primary sources and secondary sources. Both provide valuable information for you touse in an essayor another kind of academic writing, but they provide very different kinds of value. Read on to learn about the differences between primary and secondary sources...
primary sources and secondary sources 举例 Primary sources and secondary sources are two fundamental types of sources that are used to gather information, conduct research, and write academic papers. While primary sources provide a first-hand account of an event, situation, or phenomenon, secondary ...
Secondary Sources and Primary Sources “通过确定基本事实,例如建设年份,二手资料可以将研究人员指向最佳的primary sources,例如正确的税簿。 此外,仔细阅读二级来源的参考书目可以揭示研究人员可能错过的重要来源。” (Alison Hoagland and Gray Fitzsimmons, “History.” Recording Historic Structures, 2nd. ed., edited...
Using a power-law relationship, the total REE value of a sources correlates well with its ore grade. These results inform investment decisions to develop primary and secondary sources by clarifying potential variability and providing a useful rule of thumb to estimate revenues.Ajay Gupta...
"Primary sources are absolutely fundamental to history." Arthur Marwick, Professor of History Historians use a wide variety of sources to answer questions about the past. In their research, history scholars use both primary sources and secondary sources. Primary sources are actual records that have ...
在研究活动中,primary source是指从历史文献,文学文本,艺术作品,实验,调查和访谈等来源直接收集的信息。 也称为primary data。 与 secondary source 对比。 美国国会图书馆将primary sources定义为“从过去幸存下来的实际记录,如信件,照片或衣物”,与secondary sources相反,后者是”人们在有时写事件时创造的过去的记录...
在History Essay写作中,大家会遇到(通常)两种sourcesprimary和secondary sources. primary source是原始文档(从您正在研究的时间段开始,或者由当时在那里的人创建)、创造性工作或工件。为了更好地理解这个定义,让我们把它分解一下。 1.Original documents可以包括演讲、信件、手稿、照片、报纸和新闻电影片段。原始文件也可...
research: We use both primary and secondary sources, fusing quantitative and qualitative analysis, based on hundreds [...] deloittetmt.com 严谨的研究:通过数百次的深度讨论,对数万 人的调查研究以及阅读数千篇文章,采用 直接 资料和间接资 料,进行定量和定性分析。 deloittetmt.com [...] in ...
BS 6807-2006 Methods of test for assessment of the ignitability of mattresses, upholstered divans and upholstered bed bases with flaming types of primary and secondary sources of ignition.pdf 热度: PrimaryandSecondary Sources “theleavings,theshards,the ...