问题 问答题 简答题

计算题:某抄表员在一次抄表时发现某工业用户有功分时计费电能表(三相四线制)一相电流回路接反,已知从上次装表时间到现在为止该用户抄见有功电量为80000kWh、高峰电量为30000kWh、低谷电量为20000kWh。请问该用户应补交电费多少元?(假设该用户三相负荷平衡,平段电价为0.40元/kWh,高峰电价为平段电价的150%,低谷电价为平段电价的50%)。

答案

参考答案:

因该户三相负荷平衡,一相电流线圈接反,所以电量更正率为200%。

应追补高峰电费=30000×200%×0.40×150%

=36000(元)

低谷电费=20000×200%×0.40×50%=8000(元)

平段电费=(80000-30000-20000)×200%×0.4

=24000(元)

应补交电费=36000+8000+24000=68000(元)

该用户应补交电费68000元。

阅读理解

Where in the world can you take an hour’s train ride, and pass a forest, a London street, a scene from the Wild West, and a burning building that never burns down? There’s only one place, and that’s Hollywood, in California. The scenes you see from the tourist train are film sets(布景) in the Universal Studios, one of the oldest and largest movie companies(公司) in the USA.

A visit to Universal Studios brings back memories of great days of Hollywood, the films and the stars. But they are only memories. Hollywood isn’t quite the same as it used to be. Costs have gone up and confidence has gone down. Movie-makers are afraid to spend their money on expensive new ideas. Instead, they repeat old ones.

The film industry is changing fast. Teenagers still go out to the movies. The theatre is a good place to meet friends away from home. But older people mostly stay home to watch series, like Dynasty have become as important to Hollywood as expensive movies. These “soap opera”, as they are called, show rich, powerful families living in beautiful homes and wearing beautiful clothes. But the actors and actresses are nearly all middle-aged, like many of the people who watch them.

Though it is soap operas that are keeping the film-makers of Hollywood in Business, big films are still being made in America. But more and more of them are made outside Hollywood. New York is the most important new center, but there are many others as well. Movie-makers have realized that they don’t need Hollywood any more. Modern cameras and real houses instead of expensively made copies in a studio. Other states, especially Florida and Texas, are working hard to take the film business away from California. They are offering better working conditions and lower cost.

But Hollywood is fighting back. The state of California is trying hard to keep its best-known industry.

小题1:From the passage, we know Universal Studios is ______.

A.a very large park

B.a busy London street

C.a famous movie company

D.an old Hollywood movie小题2:The movie industry in California isn’t as successful as before because ______.

A.young people don’t go to movie theatres any more

B.there is strong competition from other states

C.its movie companies are in neeed of young stars

D.the state hasn’t put a development plan into action小题3:Which of the following seems to be a threat(威胁)to Hollywood?

A.The use of modern cameras and other equipment

B.The interest of middle-aged film stars

C.The making of TV series like Dynasty

D.The expensively made copies of scenes

单项选择题