单层神经网络,有三个输入,三个输出,它们之间的连接权有()。A、6个 B、9个 C、16

题型:单项选择题

问题:

单层神经网络,有三个输入,三个输出,它们之间的连接权有()。

A、6个

B、9个

C、16个

D、25个

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在我国历史上,在新中国建立之前的很长时间内,公文都采用文言或半文言作为表达信息的符号系统。

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6个月男孩,主因发热3d,惊厥2次收入院。入院查体:体温38.7℃,烦躁不安,心率120/ min,心音有力,双肺呼吸音清,未闻啰音,腹软,前囟膨隆,张力较高,为明确诊断,此患儿首先应做的检查是

A.头颅B超
B.血气分析
C.超声心动图
D.胸片
E.脑脊液检查

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t℃时,在氢氧化钙饱和溶液中加入少量氧化钙,恢复到原温度,不变的是(  )

A.溶质的质量分数

B.溶质的质量

C.溶剂的质量

D.溶液的质量

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多用于自然式园林中,构成树丛的株树从3到10株不等,几株植物按照不等株行距疏疏密密地散植在绿地中,形成若干组团的树木配置方式是()

A、丛植

B、对植

C、列植

D、群植

题型:单项选择题

Du Bois was a sociological and educational pioneer who challenged the established system of education that tended to restrict rather than to advance the progress of black Americans. He challenged what is called the “Tuskegee machine” of Booker T. Washington, the leading educational spokesperson of the blacks in the U. S. . As a sociologist and historian, Du Bois called for a more determined and activist leadership than Washington provided.

Unlike Washington, whose roots were in southern black agriculture, Du Bois’s career spanned both sides of the Mason-Dixon Line. He was a native of Massachusetts, received his undergraduate education from Fisk University in Nashville, did his graduate study at Harvard University, and directed the Atlanta University Studies of Black American Life in the South. Du Bois approached the problem of racial relations in the United States from two dimensions: as a scholarly researcher and as an activist for civil rights. Among his works was the famous empirical sociological study, The Philadelphia Negro: A Social Study, in which he examined that city’s black population and made recommendations for the school system. Du Bois’s Philadelphia study was the pioneer work on urban blacks in America.

Du Bois had a long and active career as a leader in the civil rights movement. He helped to organize the Niagara Movement in 1905, which led to the National Association for the Advancement of Colored People (NAACP), established in 1909. From 1910 until 1934, Du Bois edited The Crisis, the major journal of the NAACP. In terms of its educational policy, the NAACP position was that all American children and youth should have genuine equality of educational opportunity. This policy, which Du Bois helped to formulate, stressed the following themes: (1) public schooling should be free and compulsory for all American children; (2) secondary schooling should be provided for all youth; (3) higher education should not be monopolized by any special class or race.

As a leader in education, Du Bois challenged not only the tradition of racial segregation in the schools but also the accommodationist ideology of Booker T. Washington. The major difference between the two men was that Washington sought change that was evolutionary in nature and did not upset the social order, whereas Du Bois demanded immediate change. Du Bois believed in educated leadership for blacks, and he developed a concept referred to as the “talented tenth”, according to which 10 percent of the black population would receive a traditional college education in preparation for leadership.

Compared with Booker T. Washington, Du Bois’s stance was()

A. less popular

B. more radical

C. less aggressive

D. more conservative

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