群体（population）
群体（population）
相关考题：
The advantages and disadvantages of a large population have long been a subject of discussion among economists. It has been argued that the supply of good land is limited. To feed a large population, poor land must be cultivated and the good land worked intensively. Thus, each person produces less and this means a lower average income than could be obtained with a smaller population. Other economists have argued that a large population gives more chance of development of facilities such as ports, roads and railways, which are not likely to be built unless there is a big demand.One of the difficulties in carrying out a worldwide birth control program lies in the fact that of ficial attitudes to population growth vary from country to country depending on the level of industrial development and the availability of food and raw materials. In the developing country where a vastly expanded population is pressing hard upon the limits of food, space and natural resources, the first concern of government will be to set a limit on the birthrate, whatever the final result may be. In a highly industrialized society the problem may be more complex. A decreasing birth rate may lead to unemployment because it results in a declining market for manufactured goods.When the pressure of population on housing declines, prices also decline and building industry grow weaker. Faced with concern such as these, the government of a developed country may well prefer to see a slowly increasing population, rather than one which is stable or in decline.(1)The main topic of this article is _____________.A、environment protectionB、population growthC、environment and economyD、climate changing(2) The passage says that a small population may lead to _____________.A、higher production, but a lower average incomeB、lower production and lower average incomeC、higher production and a higher average incomeD、lower production, but a higher average income(3) According to the passage, the use of birth control perhaps is good for_____________.A、a developing countryB、a developed countryC、the whole worldD、each nation with a big population(4) In a developed country, people will perhaps be unemployed if the birthrate _____________.A、goes upB、goes downC、remains stableD、is out of control(5) The author is aiming to show that_____________.A、humans will run out of their food supply in the futureB、it is necessary for humans to carry out a worldwide plan for birth controlC、different nations have different views of population growthD、we need to take necessary measures to prevent the overuse of natural resources.
What is the 'biggest city in the world? That is, (21) city has the largest population? This seems like (22) question to answer, but actually it isn't.It's actually rather difficult to say which cities (23) the largest. There are two reasons for this difficulty. First of all, it isn't easy to determine a city's boundaries, that is, where a city ends. Nowadays, nearly all cities have a large (24) area around them. So when we talk about the population of a city, we often mean the population of the whole metropolitan area around the city. That means that it's difficult to determine what the population of a city is because it's difficult to define what a city is.The second reason that it is difficult to 25 the population of different cities is this: it is almost impossible to get (26) about the population of all cities for the same year. For example, we might get an estimate of New York's population in 1979 and an (27) of Mexico City's population in 1981. So we real ly can't compare the numbers because the information is for (28) different years. And the population of cities changes rather quickly, especially in some cases. For example, the population of Jakarta, Indonesia, may increase by 5% each year, so the population figure will change rather quickly.So we can say that these are our two (29) for comparing the populations of cities: one, it's difficult to determine the (30) of a city, and two, it is difficult to get accurate information.21. A. whatB. whichC. whereD. how
Population experts tell us that by the year 2025, the population in cities in developing nations will increase to five times its present size.()
which of the following statements is not true about maori population?A. Maori population makes up nearly one-seventh of New Zealand s total population.B. Maori population is younger than the total population.C. Non-Maori women tend to have children earlier than Maori women.D. Maori women tend to have more children than non-Maori women.
Which of the following statements is NOT true?A) World population is increasing at a rate of 150 per minute.B) Lower death rates also contribute to world population growth.C) The population of Columbia has been doubling every year for 21 years.D) The United States is usually doubling its population about every 87 years.
The topic of the passage is that __.A.the control of population is essential to the development of a nationB.natural resources are important to the economic development of a countryC.awareness of the effects of man's actions is as important as population controlD. developed countries should do more to protect natural environment on the earth
The population of the earth（）increasing fast. One third of the population here（）workers.Ais;areBis;hasbeenCare;isDis;was
The population of the earth（）increasing fast. One third of the population here（）workers.A、is;areB、is;hasbeenC、are;isD、is;was
Western Australia is the biggest Australian state,but its population is only（）of the country.s population.A、9%B、10%C、11%D、12%
单选题It is obvious that the author of the passage ______.Ashows indifference to the situation in the developed countriesBis very concerned about global population problemsCfeels confident that the problem of population growth can be soon resolvedDis pessimistic about the future of those high-fertility
单选题This year, 200 men and 250 women attend State College. If the male population were to increase by 10% next year, what is the maximum possible increase in the female population that would produce no more than an 8% increase in the overall student population next year?A16B17C20D22E26
单选题The population of the earth（）increasing fast. One third of the population here（）workers.Ais;areBis;hasbeenCare;isDis;was
单选题——What's ____ population of China? ——As far as I know, China has ____ population of about l.3 billion.Aa;theBa;aCthe; theDthe;a
问答题练习16 (1) Actually, the world’s birth rate is falling. But so is death rate, as medical advances have made it possible for man to live longer than before. Such advances have also reduced baby death rate. (2) Unless population growth is reduced, the world population may reach 12 billion in a century. Is the earth capable of providing a good life for so large a population?
单选题—What ______ the population of China?—One third of population ______ workers here.Ais; areBare; areCis; isDare; is
单选题Which statement is true about Malta’s immigrant population?AIt has a large immigrant population.BIts immigrant population is more than 3,000.CIts immigrant population totals 7,000.DIts immigrant population comes to less than 1% of the island’s 400, 000 population.
单选题The population of Boomtown doubles every 18 months. In January of 2000, its population was exactly 12, 000. At this rate, approximately when should the population reach 96, 000?AJanuary 2003BJuly 2004CJanuary 2006DJuly 2007EJanuary 2012
单选题Western Australia is the biggest Australian state,but its population is only（）of the country.s population.A9%B10%C11%D12%
问答题Do at least 20 percent of the people in country X who are over the age of 25 possess a college diploma? (1) In country X, among the population over the age of 25, 26 percent of the male population and 16 percent of the female population possess college diplomas. (2) In country X, women account for 55 percent of the total population.