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问题 单项选择题 A1/A2型题

每搏量占心室舒张末期容积的百分比称（）。

A.心脏指数

B.每搏指数

C.射血分数

D.心排血量

E.心室每搏功指数

答案

参考答案：C

解析：射血分数是指每搏量占心室舒张末期容积的百分比。

单项选择题 共用题干题

Feasibility should be measured throughout the life cycle of system development. The scope and complexity of an apparently feasible project can change after the initial problems and opportunities are fully analyzed or after the system has been designed. Thus, a project that is feasible at one point may become infeasible later. The first feasibility analysis is conducted during the (1). The (2) represents a major feasibility analysis activity since it charts one of many possible implementations as the target for systems design. (3)  is a measure of how well the solution will work in the organization. It is also a measure of how people feel about the system. When it is determined in the later stages of the system life cycle, (4)  is often performed with a working prototype of the proposed system. This is a test of the system's user interfaces and is measured in how easy they are to learn and to use and how they support the desired productivity levels of the users. Economic feasibility has been defined as a cost-benefit analysis. The (5)  technique is a simple and popular method for determining if and when an investment will pay for itself.

空白（4）处应选择（）

A.performanc eanalysis

B.control analysis

C.usability analysis

D.interface analysis
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问答题 案例分析题

阅读下列材料，回答问题：

材料一

天子受命于天，诸侯受命于天子，子受命于父，臣受命于君，妻受命于夫，诸侯受命者，其尊皆天也，虽谓受命于天亦可。

——董仲舒《春秋繁露·顺命》

材料二

国家将有失道之败，而天乃先出灾害以谴告之；不知自省，又出怪异以警惧之；尚不知变，而伤败乃至。以此见天心之仁爱人君而欲止其乱也，自非大亡道之世者，天尽欲扶持而全安之。

——董仲舒《举贤良对策》

材料三

古者以天下为主，君为客，凡君之所必而经营者，为天下也。今也以君为主，天下为客，凡天下之无地而得安宁者，为君也……则为天下之大害者，君而已矣。

——黄宗羲《明夷待访录•原君》

材料四

夫治天卞犹曳大木焉，前者唱邪，后者唱许，君与臣，共曳木之人也。

——黄宗羲《明夷待访录•原臣》

“有明之无善治，自高皇帝罢丞相始也。”“天子批红，天子不能尽，则宰相批之。”

——黄宗羲《明夷待访录•置相》

“天子之所是未必是，天子之所非未必非，天子亦遂不敢自为是非，而公其是非于学校。”

——黄宗羲《明夷待访录•学校》

请回答：

材料三、四与材料一相比，政治思想有何变化？导致变化的原因主要有哪些？
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