In a 1918 editorial, W.E.B. Du Bois advised African Americans to stop agitating for equality and to proclaim their solidarity with White Americans for the duration of the First World War. The editorial surprised many African Americans who viewed Du Bois as an uncompromising African American leader and a chief opponent of the accommodationist tactics urged by Booker, T.Washington. In fact, however, Du Bois often shifted positions along the continuum between Washington and confrontationists such as William Trotter. In 1895, when Washington called on African Americans to concentrate on improving their communities instead of opposing discrimination and agitating for political rights, Du Bois praised Washington's speech. In 1903, however, Du Bois aligned himself with Trotter, Washington's militant opponent, less for ideological reasons than because Trotter had described to him Washington's efforts to silence those in the African American press who opposed Washington's positions.
Du Bois's wartime position thus reflected not a change in his long-term goals but rather a pragmatic response in the face of social pressure: government officials had threatened African American journalists with censorship if they continued to voice grievances. Furthermore, Du Bois believed that African Americans' contributions to past war efforts had brought them some legal and political advances. Du Bois' accommodationism did not last, however. Upon learning of systematic discrimination experienced by African Americans in the military, he called on them to "return fighting" from the war.
The passage is primarily concerned with

文章类型:学术研究
文章套路:观点对比
文章介绍了 Frazier 和 Mosteller 认为医学研究的临床试验需要进行方式转变。后面的文章则解释了他们认为该如何转变,并且他们认为应该转变的理由
题目类型: Main Idea
选项解析:
A、文章提到医学研究的实践是为了展示 Frazier 和 Mosteller 认为应该转变临床方式的理由
B、不仅仅讨论了会提高成本的医学实验,还讨论了如何改进。
C、并不只是在评估现在医学实验实践的缺点
D、正确答案
E、 并不是说当代研究者的研究方式可能发生改变,而是 Frazier 和 Mosteller 提出了改进的方法

