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
43
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.
【C20】
选项
A、double
B、doublings
C、doubled
D、doubles
答案
B
解析
语义衔接题。本句的宾语从句由两个并列的分句构成,二者的句子结构基本相同,主谓宾三个成分之间分别存在对应关系,所以所填词应是doublings(加倍成双)。
转载请注明原文地址:https://jikaoti.com/ti/lhqMFFFM
0
专业英语四级
相关试题推荐
HowwillUNICEFhelptheAfricanchildren?
WriteonANSWERSHEETONEanoteofabout50~60wordsbasedonthefollowingsituation:Youhavefoundsomeoneelse’swalle
WriteonANSWERSHEETONEanoteofabout50~60wordsbasedonthefollowingsituation:Youhavemistakenyourclassmate,D
Thecompany______ariseinsalaryforages,butnothinghashappenedyet.
Ifwehangtogether,wecanovercomeanyobstacle,______greatitis.
Bythemiddleofthe21stcentury,thevastmajorityoftheworld’spopulation______incitiesratherthaninthecountry.
Thatquestion______weneedithasnotbeenconsidered.
RogerRosenblatt’sbookBlackFiction,inattemptingtoapplyliteraryratherthansociopoliticalcriteriatoitssubject,succe
Sociologistsuse"power"torefertothecapacityofpeopletocontrolorinfluencetheactionsofothers.Sociologistsstudypo
随机试题
动脉粥样硬化斑块发生的继发性改变包括
男,35岁,外伤昏迷。转送时不宜采用的措施是
被告人王某故意杀人案经某市中级法院审理,认为案件事实清楚,证据确实、充分。请根据下列条件,回答下列问题。(2010年卷二95~97题)如王某被并处没收个人财产,关于本案财产刑的执行及赔偿、债务偿还,下列说法正确的是:
什么是测量仪器的响应特性?
在原始凭证上书写阿拉伯数字,正确的做法是()。
制定企业薪酬管理制度的基本依据包括()。
根据下列资料,回答下列问题:2014年l季度第二产业增加值同比提高金额最大的为()。
Youwrinkleyournoseandnarrowyoureyelidsifyouseeadeadratintheroad,butyouopenyoureyesandmouthwideifyouse
Ahundredyearsago,pioneerpsychologistWilliamJamesdeclaredthathumansuseonlya【21】______partoftheirpotential.
Whatdoesthespeakermean?
最新回复
(
0
)