问题 问答题

何谓不确定分析?主要包括哪些方法?

答案

参考答案:

所谓建设工程的不确定性分析,就是考查建设投资、经营成本、产品售价、销售量、项目寿命计算期等因素变化时,对项目经济评价指标所产生的影响。这种影响越强烈,表明所评价的项目方案对某个或某些因素越敏感。对于这些敏感因素,要求项目决策者和投资者予以充分的重视和考虑。

不确定性分析主要包括盈亏平衡分析、敏感性分析及概率分析。盈亏平衡分析只适用于财务评价,敏感性分析和概率分析可同时用于财务评价和国民经济评价。

选择题
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Take Action for a Better World: Volunteers Needed

Six months’ preparation in Denmark: Africa studies, team work combined with social work risk group teenagers.

Six months’ community work in Malawi in people to people projects: Child Aid, HIV/AIDS Fights and Teacher Training.

Qualifications:18 years, hard-working and social engagement.

Please contact us by email:takeaction@betterworld.com

Part-time Work with Exchange Students

YOUTH International is a non-profit high school foreign exchange student organization. We welcome teenagers from over 80 countries worldwide and provide host families. The Community Representative (代表)is a part-time position designed for people with a strong desire to do something rewarding in the community and earn some extra money.

Applicants(申请人) best suited for this work should enjoy teenagers, have a strong interest in cross-cultural communication, and feel comfortable networking. Full training and support will be provided through branch offices throughout the U.S Positions available in most states.

If interested, please email staff@youth.org or call 888-123-9872.

International Summer Job

Hi, I’m an ESL student in China. I’m 20, quiet and polite, and I speak reasonable English. I am looking for a summer job in an English-speaking country. I can teach Chinese or do house and garden work, and cook Chinese dishes. Can anybody offer me a Job? I don’t need to earn much, just enough in 2 months (July-August) to pay for my return ticket to China. My goal is to improve my English and see a bit more of the world.

My email is : ram3462@hotmail.com

Call for Native Speakers of English

I am looking for native speakers of English to join in an experiment. This experiment is carried out over the Internet. You don’t need any specific knowledge other than understanding and speaking English at a native level. The first task will take you around 15 minutes. After this task, you can decide whether you want to continue the experiment. The tasks involve reading texts and designing questions and answers.

If you are willing to help me , then please email me : club3864@hotmail.com

小题1:Who is suitable to work as a Community Representative in YOUTH International?

A.One who enjoys working with teenagers from different countries.

B.One who hopes to take action in fighting against diseases

C.One who has a strong desire to improve his or her English

D.One who wants to earn some pocket money in the program小题2:Where will Jack, a volunteer, receive the training before he is sent to work in Malawi?

A.In some local offices in the U.S

B.In an ESL organization in China

C.In a preparation program in Denmark

D.In an exchange student center in Africa小题3: If Mrs. Black in the U.S hopes to learn some Chinese at home, she may contact__________.

A.takeaction@betterworld.com

B.ram3462@hotmail.com

C.club3864@hotmail.com

D.staff@youth.org小题4:What are volunteers for an experiment over the Internet supposed to do?

A.To interview people online.

B.To do some housework

C.To offer advice on child Aid

D.To provide language exercises