首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The average population density of the world is 47 persons per square mile. Continental densities range from no permanent inhabit
The average population density of the world is 47 persons per square mile. Continental densities range from no permanent inhabit
admin
2013-01-15
24
问题
The average population density of the world is 47 persons per square mile. Continental densities range from no permanent inhabitants in Antarctica to 211 per square mile in Europe. In the western hemisphere, population densities range from about 4 per square mile in Canada to 675 per square mile in Puerto Rico. In Europe the range is from 4 per square mile in Iceland to 831 per square mile in the Netherlands. Within countries there are wide variations of population densities. For example, in Egypt, the average is 55 persons per square mile, but 1,300 persons inhabit each square mile in settled portions where the land is arable.
High population densities generally occur in regions of developed industrialization, such as the Netherlands, Belgium, and Great Britain, or where lands are intensively used for agriculture, as in Puerto Rico and Java.
Low average population densities are characteristic of most underdeveloped countries. Low density of population is generally associated with a relatively low percentage of cultivated land. This generally results from poor-quality lands. It may also be due to natural obstacles to cultivation, such as deserts, mountains or malaria-infested jungles, to land uses other than cultivation, as pasture and forested land, to primitive methods that limit cultivation, to social obstacles, and to land ownership systems which keep land out of production.
More economically advanced countries of low population density have, as a rule, large proportions of their populations living in urban areas. Their rural population densities are usually very low. Poorer developed countries of correspondingly low general population density, on the other hand, often have a concentration of rural population living on arable land, which is as great as the rural concentration found in the most densely populated industrial countries.
This passage has probably been taken from ______.
选项
A、a gazetteer
B、an almanac
C、a textbook on economics
D、a world geography book
答案
D
解析
这篇短文很可能选自一本关于世界地理的书籍。这篇短文提到世界上许多国家,并指出了它们的人口密度,因此最有可能是地理书。A(gazeteer地名词典,地名索引),B(almanac年鉴),C(textbook on economics与经济学有关的教科书)的可能性不大。
转载请注明原文地址:https://kaotiyun.com/show/FB2O777K
0
考博英语
相关试题推荐
Asapsychotherapistwithmanypatientsintheir20’s,Ican______thefactthatnotonlydomostofthemnothaveanyhealthi
ItwasanormaldayinthelifeoftheAmericanRedCrossinGreaterNewYork.First,partofabuildingonWest140thStreet,i
Withinthenext20years,variousregionsoftheworldmayexperienceseverechangesinclimate.Somemaybevulnerabletolonge
Thetablebeforewhichwesitmaybe,asthescientistmaintains,composedofdancingatoms,butitdoesnotrevealitselftous
Studythepictureasfollowing,andwriteanessayofabout250words.Youressaymustbebasedontheinstructionsasfollows:
【66】Astateuniversitypresidentwasarrestedtodayandchargedwithimpersonateapoliceofficerbecame,theauthoritiessay,h
Predictionsoflargepopulationsofrobotsinindustryhaveyettocometrue.Foradecadeormore,manufacturersofbigrobots
【66】Astateuniversitypresidentwasarrestedtodayandchargedwithimpersonateapoliceofficerbecame,theauthoritiessay,h
TheunprecedentedU.S.economicboomofthelasthalfofthe1990swaspropelledbyinvestmentindigitaltechnology.Investors
Thegrowthofcell-phoneusersintheU.S.hastaperedofffromthebreakneckpaceof50%annuallyinthelate1990stowhatan
随机试题
[*]
注册会计师要履行对社会公众、客户和同行的责任。下列哪项是注册会计师行业的一个显著标志()
Historianscan’ttelluswhen,whereor【71】thefirstfoodwascooked.Inearliest【72】whenpeoplehadeatentheirfood【73】,
不能使血小板发生活化的是
胸痹患者,女,45岁。胸闷如窒而痛,气短喘促,肢体沉重,体胖痰多,舌苔浊腻,脉滑。其证候是
依法管理的计量器具不包括()。施工临时用电结束后,()应及时向供电部门办理终止用电手续。
中国结算公司上海分公司计算对各证券公司的实际收付金额时应包括()。
《拾穗者》的作者是()。
具有n个结点且互不相似的二叉树的总数是______。
A、 B、 C、 A
最新回复
(
0
)