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
45
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.
【C11】
选项
A、seek to
B、seek
C、seek after
D、seek for
答案
A
解析
见上题答案解析。
转载请注明原文地址:https://kaotiyun.com/show/cf1K777K
0
专业英语四级
相关试题推荐
WriteonANSWERSHEETONEanoteofabout50~60wordsbasedonthefollowingsituation:Youfailedtomeetyourformerclassm
Heposed________aconnoisseurintraditionalChinesepaintings,butactuallyheknewnothingaboutpaintings.
In58millionhomes,theVCRhasbecomenearlyasmuchasthefamilycar.ButdespitetheVCR’sadvantages,videobuffscomplain
In58millionhomes,theVCRhasbecomenearlyasmuchasthefamilycar.ButdespitetheVCR’sadvantages,videobuffscomplain
In58millionhomes,theVCRhasbecomenearlyasmuchasthefamilycar.ButdespitetheVCR’sadvantages,videobuffscomplain
______mancannowcreateradioactiveelements,thereisnothinghecandotoreducetheirradioactivity.
Ifwehangtogether,wecanovercomeanyobstacle,______greatitis.
Theworld’sgovernmentshavedone______nothingtocombatthethreatofnuclearaccidents.
______,wecandonothing.
I’minParis,andastrangelyquietParisitis.Nothingisgoingnowhere.Ifthey’renotonstrikehere,they’restuckinatra
随机试题
患者女,30岁。因头痛2周而入院。自诉头痛多为晨间加剧且进行性加重,给止痛药无效。可考虑的病因是()
乳头皲裂的原因除外
A.《黄帝内经》B.《河间六书》C.《景岳全书》D.《丹溪心法》E.《诸病源候论》“无痰不作眩”的论点出自何书
常用除热原的方法
根据我国法律的规定,对于有限责任公司的监事会,下列选项中,哪一项的说法是错误的?()。
工程施工项目成本管理的基本原则是( )。
净投资等于资本存量的增量。()
当启动Applet程序时,首先调用的方法是()。
A、Mathandwritingarethetwomostimportantcoursesinyourcollegelife.B、Somebasicskillsarenecessary,nomatterwhatyo
TheinterviewerusedtocareaboutallthefollowingthingsEXCEPT
最新回复
(
0
)