A large population in an underdeveloped country may lead to______.
A. a rise in work efficiency
B. a shortage of farm workers
C. a decline in grain production
D. a reduction in average income
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Population control has long been a subject of discussion among researchers. Some have argued that the supply of good land is limited. In order to feed a large population, bad land must be cultivated and the good land overworked. As a result, each person produces less in a given amount of time and this means a lower average income than could be obtained with a smaller population. Other researchers have argued that a large population gives more scope for the development of facilities such as sports, roads and railways, which are not likely to be built unless there is a big demand to justify them. Similarly, it can be argued that the public costs of society will not be so heavy to each individual if they are shared among the members of a large population.
One of the difficulties in implementing birth control lies in the fact that the official attitudes to population growth vary from country to country. In underdeveloped countries where a large population is pressing hard upon the limits of food, space and natural re-sources, it will be the first concern of government to place a limit on the birth rate. In a well-developed society the problem may be more complex. A declining birth rate may lead to unemployment because it results in a shrinking market. Cities with a declining population may have to face the prospect of a shrinking tax base and a fall in land values. If there are fewer children going to school, teachers may be thrown out of work. When the pressure of population on housing declines, prices also decline and the building industry is weakened. Faced with considerations 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.
One reason for quick population increase in underdeveloped countries is that______.
A. those countries encourage people to have large families
B. people can get government support if they have more kids
C. improved public health standards have reduced death rate greatly
D. those countries have enough resources to support a large population
【C20】
A. except that
B. in case
C. in order that
D. on condition that
偿付行受开证行的委托而付款,并且负有审核单据的责任()。
A. 正确
B. 错误
开放型投资基金所发行的资本总额与份数是固定不变的。
A. 正确
B. 错误