问题 多项选择题

概率分析是通过研究各种不确定因素发生不同幅度变动的概率分布及其()作出某种概率描述,从而对方案的风险情况作出比较准确的判断。

A.对方案经济效果的影响

B.对方案的净现金流量

C.对方案的社会效益

D.对方案的经济效果指标

E.对方案的不确定因素分析

答案

参考答案:A, B, E

解析:

概率分析是通过研究各种不确定因素发生不同幅度变动的概率分布及其对方案经济效果的影响,对方案的净现金流量及经济效果指标作出某种概率描述,从而对方案的风险情况作出比较准确的判断。

阅读理解

Do you want to be in good health? Try to do the following things! You can become strong.

Drink eight cups of water every day. Water helps your body in many ways. If you feel……,have a cup of water.

Don’t forget to eat your breakfast. Breakfast gives you everything your body needs for the morning. So do not forget your breakfast.

Calcium(钙). Your bones(骨头) need it. Milk has more calcium. You may also drink orange juice with calcium in it.

Go for a walk every day after meals. Walking is a good exercise, and people need exercise for good health, It’s better to walk after meals.

Stretch for five minutes after sitting for one or two hours. Stretching your arms and legs is good for your body.

Use your brain(大脑) every day. For example, you can do crossword puzzles or read a new book.

Have a rest about twenty minutes when you are tired. You may do something different to have a break. For example,get up and walk. Or sit down to listen to music.

小题1:How many things does this passage mention for you to do if you want to keep healthy?

A.Five

B.Six

C.Seven

D.Eight小题2:Which meal can provide(提供) what your body needs for the morning?

A.Breakfast

B.Lunch

C.Dessert

D.Dinner小题3:It’s better to take a walk after meals, isn’t it?

A.NO, it isn’t

B.Yes, it is

C.No, it doesn’t

D.Yes, it was小题4:What does the word “stretch” mean is Chinese?

A.锻炼

B.跳跃

C.跑步

D.伸展小题5:What is the best title (标题)of this passage?

A.It’s Important to Keep Healthy

B.Ways to Keep Healthy

C.Why People Do Exercise

D.Take Care of Yourself.

填空题