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
Is there a population problem? My answer【C1】______the question is "YES", there is a problem. The scale of human activities is no
Is there a population problem? My answer【C1】______the question is "YES", there is a problem. The scale of human activities is no
admin
2010-12-02
60
问题
Is there a population problem? My answer【C1】______the question is "YES", there is a problem. The scale of human activities is now so【C2】______that we are appreciably【C3】______the climate and ecosystems in our country, the U.S. and the world.
The total【C4】______of people on the environment is【C5】______to each of two factors:
A) The number of people, and
B) The【C6】______impact of each person.
If we are to【C7】______the total impact of people on the global environment, we must address the first, or preferably both, of these【C8】______
There are many strong forces that will cause【C9】______growth of the average impact of each person on the global environment. To the extent that people in【C10】______countries【C11】______increase their material standard of living to levels more like ours, material consumption per capita will grow. So we are left with the imperative of【C12】______population growth, and then of studying the question, "Can this【C13】______population be sustained?’
To gain a better appreciation of the seriousness of the problem, let us review some very elementary【C14】______Let us consider a【C15】______that is experiencing steady growth【C16】______such as 5% per year.
First we note that this growing quantity will double【C17】______in a fixed time. This doubling time is found by【C18】______70 by the percent growth per year. For example, the doubling time for a steady growth rate of 5% per year is 70/5=14 years.
Second, we note that a few doublings can give enormous numbers. It is convenient to remem-ber【C19】______ten doublings causes the growing quantity to increase in size by a factor of approximately 1000; twenty【C20】______will cause an increase by a factor of 1,000,000, etc.
【C15】
选项
A、amount
B、quality
C、quantity
D、number
答案
C
解析
名词词义衔接和辨析题。句子中的数字5%提示所填的词应该与数量有关,所以可以把答案限定在amount和quantity之间。由下文多次出现的quantity可以知道此处与数字相关的词应该是quantity。
转载请注明原文地址:https://kaotiyun.com/show/rf1K777K
0
专业英语四级
相关试题推荐
WriteonANSWERSHEETONEanoteofabout50~60wordsbasedonthefollowingsituation:Youhavemistakenyourclassmate,D
______you______furtherproblemswithyourprinter,contactyourdealerforadvice.
In58millionhomes,theVCRhasbecomenearlyasmuchasthefamilycar.ButdespitetheVCR’sadvantages,videobuffscomplain
In58millionhomes,theVCRhasbecomenearlyasmuchasthefamilycar.ButdespitetheVCR’sadvantages,videobuffscomplain
In58millionhomes,theVCRhasbecomenearlyasmuchasthefamilycar.ButdespitetheVCR’sadvantages,videobuffscomplain
Thecompany______ariseinsalaryforages,butnothinghashappenedyet.
Thepresidenttogetherwithhisfamilymembers______theparty.
______madeherparentsverydisappointed.
2003FeatureEveningPerformances!Here’swhat’sinstoreforFridayandSaturdayEvenings!Thisissubjecttochange!March7th
Sociologistsuse"power"torefertothecapacityofpeopletocontrolorinfluencetheactionsofothers.Sociologistsstudypo
随机试题
药物配合应用必须禁忌的是
抑制素对下列哪种腺垂体激素的分泌具有很强的抑制作用
有关小儿单纯性肥胖症,以下哪种说法是错误的
对癫痫发作患者的首要处置是
不用取得药品经营企业许可证即可零售经营的是()。
【2013江西真题】人格特质说起源于20世纪40年代的美国,理论的主要代表人物是美国心理学家奥尔波特和()。
甲、乙合谋勒索丙的钱财。甲与丙及丙的儿子丁(17岁)相识。某日下午,甲将丁邀到一家游乐场游玩,然后由乙向丙打电话。乙称丁被绑架,令丙赶快送3万元现金到约定地点,不许报警,否则杀害丁。丙担心儿子的生命而没有报警,下午7点左右准备了3万元后送往约定地点。乙取得
A.It’sreallyfamilyfirst.B.therealworkwillstartwhentheywalkoffthestage.C.thenitwasjustapenalty.D.because
PON包括哪两种网络?EPON使用什么复用技术?
Whenhebentdowntotiehisshoelace,thebeltofhistrousers______.
最新回复
(
0
)