何谓有形效益与成本?何谓无形效益与成本?

题型:问答题

问题:

何谓有形效益与成本?何谓无形效益与成本?

考点:经济学工程经济学工程经济学题库
题型:问答题

There are various________to this problem. We must try to find the best one. [ ]

A. ways  

B. accesses  

C. methods  

D. approaches

题型:问答题

在汽车横向平面内,转向节主销()有向内有一个倾斜角,称为主销内倾角。

A.左端

B.右端

C.上端

D.下端

题型:问答题
After forty-three years I have forgotten the name of the old lady, who was a   16   on the newspaper route in my hometown when I was a twelve-year-old boy. Yet it remains in my memory that she taught me a lesson in     17   that I shall never forget.
On a winter afternoon, my fellows and I were throwing stones onto the slanted (倾斜的) roof of the old lady’s house to observe how the stones    18    off the roof’s edge and shot out like missiles. I found a   19   smooth rock and threw it out, but it  20  straight not for the roof but for a small window of the old lady’s house.   21   the sound of broken glass, we knew we were in trouble. We ran faster than any of our   22    flew off her roof.
I was so   23   about getting caught that first night   24   I was not concerned about the old lady with the broken window in winter.    25  , a few days later I started to feel guilty for her misfortune. She    26   greeted me with a smile when I gave her the newspaper, but I was no longer able to act    27   in her presence.
I    28   my mind that I would save my newspaper delivery money, and in three weeks I had seven dollars. I put the money in an envelop with a    29   explaining that I was sorry for breaking her window and hope that the seven dollars would    30   the cost for repairing it.
I waited until it was     31     to avoid being seen, and put the letter I didn’t    32   into her yard. To my relief, I could have the   33  of, once again, looking straight into the old lady’s kind eyes.
The next day, I handed the old lady her newspaper. She thanked me and gave me a bag of cookies she had made herself.   34  eating cookies, I felt an envelope and pulled it out of the bag. After opening it, I was shocked. Inside were the seven dollars and a short note    35  , “I’m proud of you.”
小题1:
A.teacherB.customer C.relative D.friend
小题2:
A.happinessB.carelessnessC.forgivenessD.kindness
小题3:
A.rolledB.flowedC.ranD.floated
小题4:
A.simplyB.mostlyC.fairlyD.roughly
小题5:
A.followedB.came C.layD.headed
小题6:
A.AtB.On C.ForD.From
小题7:
A.athletesB.missiles C.windowsD.fellows
小题8:
A.excited B.disappointedC.embarrassedD.frightened
小题9:
A.asB.that C.when D.though
小题10:
A.ThereforeB.MeanwhileC.HoweverD.Besides
小题11:
A.yetB.stillC.even D.already
小题12:
A.cautiouslyB.constantlyC.cheerfullyD.comfortably
小题13:
A.take upB.made upC.set up D.put up
小题14:
A.paperB.noticeC.note D.message
小题15:
A.coverB.offer C.affordD.pay
小题16:
A.rainyB.fine C.cloudyD.dark
小题17:
A.signB.read C.expectD.want
小题18:
A.abilityB.freedomC.chanceD.desire
小题19:
A.UnlessB.UntilC.BecauseD.While
小题20:
A.saying B.writingC.tellingD.explaining
题型:问答题

检查见腺样体充血肿大,表面有渗出物,鼻腔和口腔有不同程度的急性炎症的是()。

A.急性腺样体炎

B.急性化脓性扁桃体炎

C.腺样体肥大

D.慢性扁桃体炎

E.鼻咽癌

题型:问答题

化学结构如下的药物是()。

A.阿霉素

B.昂丹司琼

C.米托蒽醌

D.依托泊苷

E.来曲唑

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