问题 问答题 简答题

年用电量预测常用方法有哪几种?各适于什么情况?

答案

参考答案:

(1)年递增率法,适用于长期规划,也适用于分行业中期、近期预测;

(2)国民经济电力弹性系数法,适用于长期预测,也适用于分行业的电量中、近期预测;

(3)用电单耗法,适用于分项预测;

(4)综合用电水平法,适用于中、近期预测。

选择题
阅读理解

People used to say, “The hand that rocks (摇) the cradle (摇篮) rules the world.” and “Behind every successful man there is a woman.”

Both these sayings mean the same thing. Men rule the world, but their mothers and wives rule them.

Most American women wish to make their husbands and sons successful, but some of them want more for themselves. They want good jobs. When they work they want to be better paid. They want to be as successful as men.

The American women’s liberation movement was started by women who didn’t want to stand behind successful men. They wanted to stand beside men, with the same chance for success. They refused to work side by side with men who do the same work for a higher pay.

A liberated woman must be proud of being a woman and have confidence in herself. If somebody says to her, “You have come a long way, baby.” she will smile and answer, “Not nearly as far as I’m going to go, baby!”

This movement is quite new, and many American women don’t agree yet. But it has already made some important changes in women’s lives--- in men’s lives, too.

小题1:“Behind every successful man there is a woman:” means______.

A.men are always successful but not women

B.women are not willing to stand in front of men

C.women do play an important part in men’s lives and work

D.women can be as successful as men小题2:Which of the following is NOT true?

A.Some American women want to work side by side with men and get the same pay for the same work.

B.Most American women want to be more successful than men.

C.Not every American woman wants to get a job.

D.The American women’s liberation movement did make some changes in women’s lives.小题3:“Not nearly as far as I’m going to go” means ______.

A.I’m still going to work farther away from home

B.I’m not going to work far away from home

C.I’m not satisfied with what I’ve done

D.What I have done is not far from success小题4:The American women’s liberation movement ________.

A.has still a long way to go

B.is a failure

C.was started by many successful women

D.is a new thing not accepted by the writer