问题 单项选择题

某系统集成项目为满足某种软件产品的市场需求,拟提出自主开发、部分研发任务外包和外购3个方案。假设各方案中销路好的概率为0.3,销路一般的概率为0.5,销路差的概率为0.2。不同销路的损益值如表所示。假设该项目经营期为10年,那么该项目所作的决策最可能是______。 不同销路的损益表
方案 好 一般 差 需要投资(万元) 自主开发 80 60 50 300 部分研发任务外包 30 20 15 80 外购 50 40 25 160

A.选择自主开发方案
B.选择部分研发任务外包方案
C.选择外购方案
D.条件不足,无法得出结论

答案

参考答案:A

解析: 自主开发方案的期望值计算方法为(80×0.3+60×0.5+50×0.2)×10-300=340(万元)。
部分研发任务外包方案的期望值计算方法为(30×0.3+20×0.5+15×0.2)×10-80=140(万元)。
外购方案的期望值计算方法为(50×0.3+40×0.5+25×0.2)×10-160=240(万元)。
由于340>240>140,因此从货币期望值最大决策角度考虑,建议该项目选择自主开发方案。

阅读理解

The famous American gorilla(大猩猩) expert Diane Fossey had a completely new way to study gorillas — she pretended to be one of them. She copied their actions and way of life — eating plants and getting down on her hands and knees to walk the way a gorilla does. It was a new relationship.

Diane Fossey was murdered in Rwanda in 1985 and her story was made into the popular film Gorillas in the Mist. It was a long way from King Kong, which is about a gorilla as a monster (a frightening animal), and helped to show a new idea: the real monster is man, while the gorilla is to be admired.

Today there are thought to be around 48,000 lowland gorillas and maybe 400—450 mountain gorillas in the wild. From the Congo in West Africa, to Rwanda and Uganda further east, they are endangered by hunting and by the cutting down of their forest homes.

Some time ago, I found in my letterbox a little magazine from the World Wide Fund for Nature. It had two photos side by side. One was of a young gorilla. “This is a species of mammal(哺乳类动物),” said the words below it. “It is being destroyed by man. We must save it for our own good.” The other photo showed a human baby. The words also read, “This is a species of mammal,” but then went on: “It is the most destructive(破坏性的) on earth. We must retrain it for its own good.”

小题1:The text mainly talks about _____.

A.Diane Fossey

B.the gorillas in Rwanda

C.the protection of the gorillas

D.the film Gorillas in the Mist小题2:We can learn from the text that _____.

A.Gorillas in the mist was based Fossey’s experiences

B.Lowland gorillas live longer than mountain gorillas

C.King Kong showed us that a gorilla is admirable

D.Diane Fossey was murdered by a gorilla小题3:What message can we get from the two photos in the magazine?

A.Gorillas are man’s close friends.

B.Both man and the gorilla need to be saved.

C.Young gorillas are as lovely as human babies.

D.Man should live peacefully with the gorilla.

单项选择题