题目内容
（请给出正确答案）
A.consumers get tired of goods and use less of them
B.consumers want more variety in goods and services
C.a higher price for a good reduces the consumer’s desired consumption of a good
D.a lower price for a good reduces the consumer’s desired consumption of a good
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更多“Why are most demand curves dow…”相关的问题
(1)如果公司决定将两种产品的价格都提高10%，其销售量会有什么变化？销售收入呢？
(2)你能否从已知的信息中判断，哪个产品会给厂商带来最大的收入？如果答案是肯定的，为什么？如果无法做出回答，你还需要哪些信息？
The ACME Corporation determines that at current prices the demand for its computer chips has a price elasticity of-2 in the short run, while the price elasticity for its disk drives is- 1.
a. If the corporation decides to raise the price of both products by 10 percent , what will happen to its sales？ To its sales revenue？
b. Can you tell from the available information which product will generate the most revenue for the firm？ If yes, why？ If not, what additional information would you need？
为什么当厂商在产品市场具有垄断势力时，它对劳动力的需求曲线比厂商是竞争性生产时弹性小？
Why is a firm's demand for labor curve more inelastic when the firm has monopoly power in the output market than when the firm is producing competitively？
r war would be madness does not mean that it will not occur.
A) what B) which C) that D) why
rved is that language helps to ______ a culture
A) retain B) relate C) remark D) review
Mega-cities
In 1950, New York was the only city with more than 10 million inhabitants. There are now 11cities housing over 11 million people each. Tokyo alone has 17 million. In 1995, their combined population totaled 166 million; in 2015 it is forecast to be over 204 million.
The world’s urban population, increasing at four times the rate of rural populations, will double in the period 1990-2025, to over five billion. Consequently, two-thirds of the people of the world will live in cities, some of which will be huge. Moreover, about 90% of the growth will be in developing countries. This growth, adding around 60 million people per year to city population, will be mainly in Southeast Asia and Africa. The consequences are dramatiC.This is change on a scale never before experienced, bringing with it considerable challenges and opportunities.
Why does this growth happen？ Most of it results from internal migration rather than the international movement of people, and is caused by a variety of push and pull factors.
One push factor is due to pressure on land availability. Improved health brings population growth, causing people to move out of rural areas. Others move because of climate change or poor farming methods which often result in deforestation and flooding. Such changes can alter the social structure, leading people to move. Furthermore, civil war or regional conflicts also cause disruption, driving people out of rural areas.
On the other hand, there are the pull factors. Cities attract people because of the demand for labor in the manufacturing and service industries. As a result, they offer a higher standard of living to the lucky ones. Cities also tend to offer greater personal freedom.
The world economy has expanded five-fold since 1950, with the cities driving the expansion. Much of this economic expansion has been in the developing countries of Southeast Asia. Therefore, most of the mega-cities of the future will be found there.
1.The combined total population of these 11 cities ________.
A.was 166 million in 1950
B.was 17 million in 1995
C.is 204 million now
D.will be over 204 million in 2015
2.
The world ’ s rural population ________.
A.increased at one fourth the rate of urban population
B.increased at four times the rate of urban population
C.will be four times bigger by 2025
D.will double in the period 1990-2025
3.
Which of the following is true according to this passage？ _________.
A.There are now 11 cities with a total population of 11 million people.
B.The world ’ s urban population will be four times bigger by 2025
C.Various push and pull factors cause people to move 正确
D.Two-thirds of the world ’ s population will live in cities in Southeast Asia and Africa.
4.
People choose to leave rural areas partly because _________.
A.climate change or poor farming methods result in deforestation and flooding 正确
B.the living standards of cities are much lower
C.the population of rural areas increased faster than that of urban areas
D.there are not enough space for people to live there
5.
We can conclude from the last paragraph that_________.
A.the world economy has declined since 1950
B.economic expansion leads to mega-cities 正确
C.the expansion is mainly taking place in Europe
D.there isn ’ t any economic expansion in the developing countries
1)、A.but
B.how
C.from
D.whether
E.average
2)、A.but
B.how
C.from
D.whether
E.average
3)、A.but
B.how
C.from
D.whether
E.average
4)、A.but
B.how
C.from
D.whether
E.average
5)、A.but
B.how
C.from
D.whether
E.average
We have read your advertisement in International Trade and are glad to know that you are one of the leading exporters of silk blouses (短上衣，女衬衫)in China. We are interested in the goods and would like to be informed of the details of your various types, including sizes, colors and prices.
We are a large dealer in silk garments(服装), having over 15 years’ experience in this particular line of business. Silk blouses of good quality and moderate prices command a good sale in our market.
When replying, please state the terms of payment and the discounts you would allow on a regular purchase of over 100 dozen items.
We look forward to your early reply.
Yours sincerely,
D. Johnson
Letter Two
April 20, 2019
Dear Sir,
We are pleased to receive you inquiry of April 10 , and thank you for your interest in our products.
We are glad to tell you that we are in a position to supply the items inquired. We are confident that the superior material and exquisite(精致的)craftsmanship of our silk blouses appeal to the most selective buyers.
On regular purchases of over 100 dozen items a discount of 3% is granted. If you place your order no later than the end of this week, we would guarantee a prompt delivery within 20 days, and demand you payment by sight L/C.
Enclosed is a quotation sheet and a copy of illustrated catalogue giving the details you ask for. As the market is showing an upward tendency, it is profitable for you to place an order immediately.
We look forward to your early reply.
Yours sincerely,
D. Johnson
Letter Two
April 20, 2019
Dear Sir,
We are pleased to receive you inquiry of April 10 , and thank you for your interest in our products.
We are glad to tell you that we are in a position to supply the items inquired. We are confident that the superior material and exquisite(精致的)craftsmanship of our silk blouses appeal to the most selective buyers.
On regular purchases of over 100 dozen items a discount of 3% is granted. If you place your order no later than the end of this week, we would guarantee a prompt delivery within 20 days, and demand you payment by sight L/C.
Enclosed is a quotation sheet and a copy of illustrated catalogue giving the details you ask for. As the market is showing an upward tendency, it is profitable for you to place an order immediately.
We look forward to your first order.
Yours faithfully
Wang Fan
B-16. According to the passage, the buyer wants to purchase _____.
A、100 dozen silk blouses
B、less than 100 dozen silk blouses
C、over 100 dozen blouses
D、over 100 dozen items of silk blouses
B17. Which of the following statements is true？
A、It is the first time that the buyer contacts the seller.
B、The buyer has over 100 years’ experience in this line of business.
C、The seller has read the buyer’s advertisement in International Trade.
D、The buyer is one of the leading exporters of silk blouses in China.
B-18. When did the seller write the letter？
A、On April 10, 2019.
B、On April 20, 2019.
C、On April 19, 2019.
D、Yesterday.
B-19. On what condition does the seller allow a discount of 3%？
A、To buy 100 dozen silk blouses.
B、To buy over 100 dozen silk blouses.
C、To buy regularly over 100 dozen blouses.
D、To buy regularly over 100 dozen items of silk blouses.
B-20. What is put into the envelope with Letter Two？
A、Not mentioned.
B、Some samples.
C、A quotation sheet and a copy of illustrated catalogue.
D、A guarantee letter.
(1) Life can be tough for immigrants in America. As a Romanian bank clerk in Atlanta puts it, to find a good job “you have to be like a wolf in the forest – able to smell out the best meat.” And if you can’t find work, don’t expect the taxpayer to bail you out. Unlike in some European countries, it is extremely hard for an able-bodied immigrant to live off the state. A law passed in 1996 explicitly bars most immigrants, even those with legal status, from receiving almost any federal benefits. (2) That is one reason why America absorbs immigrants better than any other rich countries, according to a new study by the University of California. The researchers sought to measure the effect of immigration on the native-born in 20 rich countries, taking into account differences in skills between immigrants and natives, imperfect labor markets and the size of the welfare state in each country. (3) Their results offer ammunition for fans of more open borders. In 19 out of 20 countries, the authors calculated that shutting the doors entirely to foreign workers would make the native-born worse off. Never mind what it would do to the immigrants themselves, who benefit far more than anyone else from being allowed to cross borders to find work. (4) The study also suggests that most countries could handle more immigration than they currently allow. In America, a one-percentage point increase in the proportion of immigrants in the population made the native-born 0.05% better off. The opposite was true in some countries with generous or ill-designed welfare states, however. A one-point rise in immigration made the native-born slightly worse off in Austria, Belgium, Germany, Luxembourg, the Netherlands, Sweden and Switzerland. In Belgium, immigrants who lose jobs can receive almost two-thirds of their most recent wage in state benefits, which must make the hunt for a new job less urgent. (5) None of these effects was large, but the study undermines the claim that immigrants steal jobs from native or drag down their wages. Many immigrants take jobs that Americans do not want, the study finds. This “smooths” the labor market and ultimately creates more jobs for locals. Native-owned grocery stores do better business because there are immigrants to pick the fruit they sell. Indian computer scientists help American software firms expand. A previous study found that because immigrants typically earn less than locals with similar skills, they boost corporate profits, prompting companies to grow and hire more locals. 1. Increase in immigration in Austria fails to improve locals’ life mainly because of ________.
A、low wages for locals
B、imperfect labor markets
C、the design of the welfare system
D、inadequate skills of immigrants
A.Concerning
B.Assuming
C.Regarding
D.predicting
