关于物体运动状态的改变,下列说法中正确的是( ) A.运动物体的加速度不变,则其

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问题:

关于物体运动状态的改变,下列说法中正确的是(  )

A.运动物体的加速度不变,则其运动状态一定不变

B.物体的位置在不断变化,则其运动状态一定在不断变化

C.做直线运动的物体,其运动状态可能不变

D.做曲线运动的物体,其运动状态也可能不变

考点:加速度
题型:选择题

TEXT C

Roger Rosenblatt’ s book Black Fiction, in attempting to apply literary rather than sociopolitical criteria to its subject, successfully alters the approach taken by most previous studies. As Rosenblatt notes, criticism of Black writing has often served as a pretext for expounding on Black history. Addison Gayle’ s recent work, for example, judges the value of Black fiction by overtly political standards, rating each work according to the notions of Black identity which it introduces.
Although fiction assuredly springs from political circumstances, its authors react to those circumstances in ways other than ideological, and talking about novels and stories primarily as instruments of ideology outwits much of the fictional enterprise. Rosenblatt’ s literary analysis discloses affinities and connections among works of Black fiction which solely political studies have overlooked or ignored.
Writing acceptable criticism of Black fiction, however, presupposes giving satisfactory answers to a number of questions. First of all, is there a sufficient reason, other than the racial identity to the authors, to group together works by Black authors Second, how does Black fiction make itself distinct from other modem fiction with which it is largely contemporaneous Rosenblatt shows that Black fiction constitutes a distinct body of writing that has an identifiable, coherent literary tradition. Looking at novels written by Blacks over the last eighty years, he discovers recurring concerns and designs independent of chronology. These structures are related to the themes, and they spring, not surprisingly, from the central fact that the Black characters in these novels exist in a predominantly White culture, whether they try to conform to that culture or rebel against it.
Black Fiction does leave some aesthetic questions open. Rosenblatt’ s theme-based analysis permits considerable objectivity, he even explicitly states that it is not his intention to judge the merit of the various works, yet his reluctance seems misplaced, especially since an attempt to appraise might have led to interesting results. For instance, some of the novels appear to be structurally diffuse. Is this a defect, or are the authors working out of, or trying to forge, a different kind of aesthetic In addition, the style of some Black novels, like Jean Tommer’s Cane, verges on expressionism or surrealism; does this technique provide a counterpoint to the prevalent theme that portrays the fate against which Black heroes are pitted, a theme usually conveyed by more naturalistic modes of expression
In spite of such omissions, what Rosenblatt does include in his discussion makes for an astute and worthwhile study. Black Fiction surveys a wide variety of novels, bringing to our attention in the process some fascinating and little-known works like James Weldon Johnson’ s Autobiography of an Ex-colored Man. Its argument is tightly constructed, and its forthright, lucid style exemplifies levelheaded and penetrating criticism.

The author of the passage is primarily concerned with ______.

A.evaluating the soundness of a work of criticism

B.comparing various critical approaches to a subject

C.discussing the limitations of a particular kind of criticism

D.summarizing the major points made in a work of criticism

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用于整理质量特性统计数据,了解统计数据的分布特征,观察生产过程质量稳定与否,并可用于制定质量控制公差标准的数理统计方法是()。

A.分层法

B.因果分析法

C.控制图法

D.直方图法

题型:选择题

管路空气清洗质量的确定方法是什么?

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一般说来,买卖双方对价格的认同程度通过( )得到确认。

A.成交量的大小

B.成交价的高低

C.成交速度的快慢

D.成交时间的集中程度

题型:选择题

下列哪条原文最能说明阴阳相互为用的关系()

A.阴静阳躁

B.阳生阴长

C.阴平阳秘

D.阳为气,阴为味

E.阴在内,阳之守也;阳在外,阴之使也

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