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问题 多项选择题

下列商品中，需求处于稳定形态的有()。

A.高档家具

B.灯管

C.食盐

D.空调

E.棉布

答案

参考答案：B, C, E

解析：稳定状态是指商品需求基本上处于平均形态或供需基本平衡状态，各个周期商品需求量变化不大。包括：人们生存的必须商品;人们日常必须的生活用品;人们必需的燃料、能源;人们必需的衣着类。

单项选择题

以下这些附件中，（）不用于热水供热系统。

A.疏水器

B.膨胀水箱

C.集气罐

D.除污器
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单项选择题

Who won the World Cup 1994 football game What happened at the United Nations How did the critics like the new play (1) an event takes place, newspapers are on the streets (2) the details. Wherever anything happens in the world, reporters are on the spot to (3) the news.
Newspapers have one basic (4) , to get the news as quickly as possible from its source, from those who make it to those who want to (5) it.
Radio, telegraph, television, and (6) inventions brought competition for newspaper. So did the development of magazines and other means of communication. (7) , this competition merely spurred the newspapers on. They quickly made use of the newer and faster means of communication to improve the (8) and thus the efficiency of their own operations. Today more newspapers are (9) and read than ever before. Competition also led newspapers to branch out into many other fields. Besides keeping readers (10) of the latest news, today’s newspapers (11) and influence readers about politics and other important and serious matters. Newspapers influence readers’ economic choices (12) advertising. Most newspapers depend on advertising for very (13) .
Newspapers are sold at a price that (14) even a small fraction of the cost of production. The main (15) of income for most newspapers is commercial advertising. The (16) in selling advertising depends on a newspaper’s value to advertisers. This (17) in terms of circulation. How many people read the newspaper
Circulation depends (18) on the work of the circulation department and on the services or entertainment (19) in a newspaper’s pages. But for the most part, circulation depends on a newspaper’s value to readers as a source of information (20) the community, city, county, state, nation, and world—and even outer space.

[A] tries to cover [B] manages to cover [C] fails to cover [D] succeeds in covering
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