问题 单项选择题

在寿命周期成本分析过程中,进行维持费中各项费用之间的权衡分析时,可采取的手段是( )。

A.进行节能设计,节省运营费用

B.采用整体式结构,减少安装费用

C.采用计划预修,减少停机损失

D.改善原设计材质,降低维修频率

答案

参考答案:C

填空题
阅读理解

Ask three people to look out the same window at a busy street comer and tell you what they see. Chances are you will receive three different answers. Each person sees the same scene, but each perceives(察觉) something different about it. 

Perceiving goes on in our minds. Of the three people who look out the window, one may say that he sees a policeman giving a motorist a ticket. Another may say that he sees a rush-hour traffic jam at the intersection. The third may tell you that he sees a woman trying to cross the street with four children in tow. For perception(感知) is the minds’ interpretation of what the senses — in this case our eyes — tell us.

Many psychologists(心理学家)today are working to try to determine just how a person experiences or perceives the world around him. Using a scientific approach, these psychologists set up experiments in which they can control all of the factors. By measuring and charting the results of many experiments, they are trying to find out what makes different people perceive totally different things about the same scene.

小题1:Perceiving is an action that takes place ______.

A.in our eyes

B.only when we think very hard about something

C.only under the direction of a psychologist

D.in every person’s mind小题2:People perceive different things about the same scene because ______.

A.they see different things

B.they can not agree about things

C.some have better eyesight

D.none of these小题3: Psychologists study perception by ______.

A.setting up many experiments

B.asking each other what they see

C.looking out of windows

D.studying people’s eyes小题4:The best title for this article is ______.

A.How We See

B.Learning About Our Minds Through Science

C.What Psychologists Perceive

D.How To Become An Experimental Psychologist