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
专升本
A recent study described coal as a "bridge to the future". As the most plentiful fossil(化石) fuel in the world, coal has the poss
A recent study described coal as a "bridge to the future". As the most plentiful fossil(化石) fuel in the world, coal has the poss
admin
2019-01-24
10
问题
A recent study described coal as a "bridge to the future". As the most plentiful fossil(化石) fuel in the world, coal has the possibility for filling a growing portion of the demand for energy. But problems cause some trouble to this promising old fuel.
Coal is found around the globe, but three countries—the United States, the Soviet Union and China own nearly two thirds of all known coal reserves.
At present rates of using coal these reserves would last the world more than 200 years, according to the estimates carefully made. Furthermore, scientists think the world probably has 15 times this much coal.
While the United States has the largest share—more than a quarter of the 786 billion tons of known world coal reserves, both the Soviet Union and China produce almost as much coal as the U. S. does.
In addition to the category of known reserves, the U. S. Geological Survey (地质调查所) has calculated that the United States has an estimated 1. 7 trillion (万亿) tons of coal at depths of less than 3,000 feet. Unfortunately, much of this coal is not easy to get with present technology or at present prices.
To produce and use much more coal than we do today, a number of problems will have to be solved: capital at high interest rates, manpower, and transportation, including insufficient rail facilities. Environmental concerns include the proper development of mine sites, possible changes in global climate caused by increased carbon dioxide from burning coal, and the objects that are sent out from coal stacks (烟囱) that wear out buildings, poison lakes, and damage human lungs.
Which problem is Not mentioned in the article?
选项
A、Difficulties in digging the coal.
B、Pollution of the environment.
C、What happens when the coal is used up.
D、Insufficient rail facilities.
答案
C
解析
由第四段中much of this coal is not easy to get with present technology or at present prices排除A选项,由第五段第一、第二句话排除B、D选项,故选C。
转载请注明原文地址:https://jikaoti.com/ti/PLUGFFFM
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Japan’s24-hourconveniencestores,alreadystrugglingwithlaggingsalesandgrowth,maysoonfaceyetanotherthreat—movesto
Thestrangecloseunderstandingbetweentwinsisafamiliarenoughphenomenon.Oftentheyseemtounderstandeachotherandshar
Atfirstglance,therehardlyseemstobeanycomparisonbetweenRavennaandRome,butbackinthe5thcentury,itwasRavennat
Computersmayonedayturnnightintoday—withgoodold,naturalsunlight.Colossalcomputer-controlledmirrors,thousandso
Thestrangecloseunderstandingbetweentwinsisafamiliarenoughphenomenon.Oftentheyseemtounderstandeachotherandshar
In1993,NewYorkStateorderedstorestochargeadepositonbeverage(饮料)containers.Withinayear,consumershadreturnedmill
Theyoungmanlosthisjoblastmonth,butitwasn’tlong______hefoundanewpositioninmycompany.
Theadvertisingcompanyrecentlyhiredadesigner______hadoncewonaprizeinanationalcontest.
WhenIcamethroughthecustomsattheairport,Ihadtopay______onthewatchIhadbought.
随机试题
A.早期胃癌B.小胃癌C.微小胃癌D.进展期胃癌E.晚期胃癌癌灶直径≤5mm的胃癌属于
浅龋与轻度釉质发育不全的鉴别要点,不包括
男性,64岁,吞咽困难3个月。30年前因“胃溃疡穿孔”曾行“胃大部切除术”。入院上消化道造影提示;食管中段长4cm狭窄,胃呈术后改变(毕I式)。最佳的代食管器官是
下列哪种建筑突出物允许突人道路红线?[2000年第3题][2006年第51题]
企业发行股票筹资的特点包括( )。
当社会总供给大于总需求时,政府可实施的财政政策措施有()。Ⅰ.增加财政补贴支出Ⅱ.实行中性预算平衡政策Ⅲ.缩小预算支出规模Ⅳ.降低税率
以下符合《银行从业人员职业操守》的制定目的的是()。
用于评价企业盈利能力的总资产报酬率指标中的“报酬”是指( )。
某企业只生产A产品,本月实际产量是500件,发生固定制造费用1800元,实际工时900小时;企业生产能力为800件即2400小时;每件产品固定制造费用标准成本为9元。则下列说法中正确的有()。
内部语言(北京大学)
最新回复
(
0
)