请阅读以下材料，并回答下列问题。 Almost every family buys at least one copy of a newspaper every day. Some people subscribe to as many as two or three different newspapers. But why do people read newspapers? Five hundred years ago, news of important happenings-battles lost and won, kings or rulers overthrown or killed-took months and even years to travel from one country to another. The newspapers of important events that occur in faraway countries on the same day they happen. Apart from supplying news from all over the world, newspapers give us a lot of other useful information. There are weather reports, radio, television and film guides, stories, and advertise-ments, etc. There are all sorts of advertisements. The bigger ones are put in by large companies to bring attention to their products. They pay the newspapers thousands of dollars for the advertising space, but it is worth the money for news of their products goes into almost every home in the country. For those who produce newspapers, advertisements are also very important. Money earned from advertisements makes it possible for them to sell their newspapers at a low price and still make a profit. Newspapers often have information on gardening, cookery and fashion, as well as a small but very popular section on jokes and cartoons.
23. The habit of reading newspapers is ______.
A.widespread
B.found among a few families
C.not popular
D.uncommon
A B C D
A
[解析] 根据文章第一段第一句“Almost every family buys at least one copy of a newspaper every day”可知。几乎每一个家庭至少会订阅一份报纸，所以由此推断阅读报纸的习惯很“普遍”。故选A。
24. The money spent on advertisements is ______.
A.wasted
B.not much
C.worthwhile
D.of no use to anyone
A B C D
C
[解析] 根据文章第三段“it is worth the money for news of their products goes into almost every home in the country”可知对广告商而言投入的广告费是“值得的”，故选C。
25. Which of the following statements is not true?
A.The news that we need in our newspapers is out of date.
B.Large companies put big advertisements in the newspapers because they want to draw people's attention to their products.
C.Five hundred years ago news did take a long time to to reach other countries.
D.Though newspapers are sold at a low price, the producers still gain profit.
A B C D
A
[解析] 根据文章第三段“The bigger ones are put in by large companies to bring attention to their products”可知B项正确；根据文章第二段“Five hundred years ago, ...took months and even years to travel from one country to another”可以得出C项正确；根据文章第三段“Money earned from advertisements makes it possible for them to sell their newspapers at a low price and still make a profit”可知D项正确。故选A。
中必须去掉哪两个分数，才能使余下的分数之和等于1?
选C。
；甲做5天、乙做3天也可以完成总数的
解得m=40，黑球有45个。
D正确。
深色：已答题 浅色：未答题