What leads to a stable growth of population for most of human hi-考呗网题库移动版

单选题 What leads to a stable growth of population for most of human history?

A．Species competition.
B．Low fertility.
C．Tribal fights.
D．High mortality.

参考答案D

解析: 定位：根据题干信息词stable growth和most of human history定位到第二段第三句和第五句。
解析：题干问“什么导致人口在人类的大部分历史时期增长稳定”，文中提到“回顾8000年来的人口统计历史，我们会发现在人类历史的大部分时期，人口数量几乎一直是稳定的，或者可以说，人口增长幅度是很小的……大部分地区的生育率都很高，但是，死亡率通常也很高，这使得人口趋于平衡”。由此可知，在漫长的历史长河中，大部分时间人口增长稳定，并不是因为其生育能力低等原因，而是因为其死亡率高，故D项符合句意，为正确答案。

点击查看答案进入在线模考

你可能喜欢

单选题 The reason for a rapid growth of population lies in the fact that

A．people are permitted to have more children
B．people can live better than before
C．newborn babies die less than before
D．we have found the secret of longevity

点击查看答案进入在线模考

单选题How many people are born every six hours at present, according to the author?

A．Eighty million.
B．Eight thousand.
C．Fifty thousand.
D．Five million.Passage Two

点击查看答案进入在线模考

单选题Questions are based on the following passage.
Banking is about money; and no other familiar services or commodities arouse such excesses of passion and dislike. Nor is there any other about which more nonsense is talked. The type of thing that comes to mind is not what normally called economics, which is inexact rather than nonsensical, and only in the same way as all scientists are at the point where they try to predict people's behavior and its consequences. Indeed most social sciences and, for example, medicine could probably be described in the same way.
However, it is common to hear assertions of the kind "if you were marooned (孤立无援的）on a desert island a few seed potatoes would be more useful to you than a million pounds" as though this proved something important about money except the undeniable fact that it would not be much used to anyone in a situation where very few of us are at all likely to find ourselves. Money in fact is a token, or symbolic object, exchangeable on dernand by its holders for goods and services. Its use for this purpose is universal except within a small number of primitive agricultural communities.
Money and the price mechanism, i.e., the changes in prices expressed in money terms of different goods and services, are the means by which all modem societies regulate demand and supply for these things. Especially important are the relative changes in price of different goods and services compared with each other. To take random examples: the price of house building has over the past five years risen a good deal faster than that of domestic appliances like refrigerators, but slower than that of motor insurance or French Impressionist paintings.This fact has complex implications for students of the brick industry, trade unionism, town planning, insurance companies, fine art auctions, and politics. Unpacking these implications is what economics is about, but their implications for bankers are quite different.
In general, in modem industrialized societies, prices of services or goods produced in a context requiring a high service-content (e.g., a meal in a restaurant.are likely to rise in price more rapidly than goods capable of mass-production on a large scale. It is also a characteristic of highly developed economies that the number of workers employed in service industries tends to rise and that of workers employed in manufacturing to fall. The discomfort this truth causes the big general trade unions as they contrast their own situation with that of the rapidly growing white-collar unions has been an important source of tension in western political life for many years and is likely to remain so for many more.
According to the author, banking

A．is another form of commodities
B．arouses people's passionate concern
C．is the same thing as economy
D．has the same description.as medicine

点击查看答案进入在线模考

hot热门搜索

你可能喜欢

延伸阅读