搜题请搜索小程序“爱下问搜题”
问题 单项选择题 A型题

二尖瓣口重度狭窄时，超声心动图检测血流频谱平均跨瓣压差数值应为（）。

A.10mmHg

B.25mmHg

C.5mmHg

D.8mmHg

E.16mmHg

答案

参考答案：B

材料题

在探讨了“中国计划经济的形式和变革”问题时，某同学发现在20世纪30年代中国兴起了一股计划经济思潮，并摘录了以下材料。请根据材料，结合所学知识，在下列问题的指引下，进行深入探究。        

材料：

许多人，“对苏联表示同情之美感，有的甚至替它大事鼓吹，以为苏俄成功之秘诀，在于它的社会经济制度，因为这个制度是有计划的，有组织的”。                                    ——据《东方杂志》（1933年）

“在内外层层叠叠的高压状态底下的中国”，最急需的是“整个地实行社会主义的统制经济（计划经济）和集体生产”。                                             ——据《申报月刊》（1933年）

“左倾的也好，右倾的也好，大家都承认放任经济的末日到了”。                                     ——据《独立评论》（1934年）

请回答：

（1）从国际和国内两方面分析20世纪30年代计划经济思潮在中国兴起的原因。

________________________________________________________________________________________________________________________________________________________________

（2）分析20世纪50年代中国选择计划经济体制的原因，并简述这一体制对经济建设的影响。

________________________________________________________________________________________________________________________________________________________________

（3）20世纪70年代以来，世界范围内兴起了经济调整之风。概括指出20世纪70年代西方国家经济政策进行了怎样的调整；简述改革开放以来中国经济体制改革不断深化的表现。

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

（4）通过上述探究学习，你获得什么历史启示？

________________________________________________________________________________________________________________________________________________________________
查看答案
单项选择题

Cooperation is the common endeavor of two or more people to perform a task or reach a jointly cherished goal. Like competition and conflict, there are different forms of cooperation, based on group organization and attitudes.
In the first form, known as primary cooperation, group and individual unite. The group contains nearly all of each individual’s life. The rewards of the group’s work are shared with each member. There is an interlocking identity of individual, group, and task performed. Means and goals become one, for cooperation itself is valued.
While primary cooperation is most often characteristic of preliterate societies, secondary cooperation is characteristic of many modern societies. In secondary cooperation, individuals devote only part of their lives to the group. Cooperation itself is not a value. Most members of the group feel loyalty, but the welfare of the group is not the first consideration. Members perform tasks so that they can separately enjoy the fruits of their cooperation in the form of salary, prestige, or power. Business offices and professional athletic teams are examples of secondary cooperation.
In the third type, called tertiary cooperation or accommodation, latent conflict underlies the shared work. The attitudes of the cooperating parties are purely opportunistic; the organization is loose and fragile. Accommodation involves common means to achieve antagonistic goals; it breaks down when the common means cease to aid each party in reaching its goals. This is not, strictly speaking, cooperation at all, and hence the somewhat contradictory term antagonistic cooperation is sometimes used for this relationship.

Which of the following is an example of the third form of cooperation as it is defined in Paragraph 4

A. Students form a study group so that all of them can improve their grades.
B. A new business attempts to take customers away from an established company.
C. Two rival political parties temporarily work together to defeat a third party.
D. Members of a fanning community share work and the food that they grow.
查看答案