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 pos
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 pos
admin
2019-01-24
11
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://kaotiyun.com/show/J8aC777K
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
Twohundredyearsago,AmericanstudentswenttoAmericanschools.Likeyou,theystudiedarithmetic,spellingandgeography.Un
WhentheOldandNewCitiesofJerusalemwerereunitedin1967,arecentlywidowedArabwoman,whohadbeenlivinginOldJerusa
JohnPaulJoneswasoneofthefoundersoftheUnitedStatesNavy.DuringtheRevolution,thecoloniesweredesperate.Theyneed
A.HowaboutherB.WhathappenedC.IbelieveheD.poorAlanE.IcanimagineF.IguesssomethingG.Isshefine
Agroupofscientistsrowingtowardthecenterofalakesawsomethingshocking.Theyturnedbackasfastastheycould.Whatha
Never______theweatherbeensobadinOctober.
Therewasariverwithasmalltownoneithersideofit.Thetownswerelinkedbyabridge.Oneday,aholeappearedinthebri
Howcanwegetridofgarbage?Dowehaveenoughenergysourcestomeetourfutureenergyneeds?Thesearetwoimportantque
随机试题
为保证焊透,同样厚度的T形接头应比对接接头选用直径较细的焊条。
患者男性,55岁,寒战高热(39.6℃)1d,咳嗽伴左胸痛,咳大量砖红色胶冻样痰,查体:轻度发绀,血压80/50mmHg,左肺叩诊浊音,呼吸音减低,X线胸片示左肺呈多发性蜂窝状阴影,最可能的诊断为
2型糖尿病四种口服药物有磺脲类、__________、葡萄糖苷酶抑制剂类、噻唑烷二酮类。
一天晚上,甲去电影院看电影。电影开始放映后,坐在甲后一排的乙、丙二人不停地说笑、打闹。甲按捺不住,起身回头指责二人。三人发生争吵,乙、丙二人对甲大打出手。甲情急中掏出随身携带的水果刀往前乱刺,结果刺中坐在乙旁边的观众丁,致丁重伤。甲的行为属于( )。
毛泽东思想的精髓是()。
根据以下资料回答下列问题。经国家统计局核准,2006年某省生产总值641.05亿元,比上年增长12.2%;人均生产总值11753元,比上年增长11.3%。在产业结构调整中,全年第一产业完成产值69.60亿元,比上年增长3.5%;第二产业完成增加值334.
ReadthestoryinChinesebelow,andthenwriteacompositionofnolessthan150wordsunderthetitleof"TheGoalofLife".Y
我国采取单一制国家结构形式的主要原因是()。
结合材料回答问题:习近平同志在主持中央政治局第三十七次集体学习时指出:“改革开放以来,我们深刻总结我国社会主义法治建设的成功经验和深刻教训,把依法治国确定为党领导人民治理国家的基本方略,把依法执政确定为党治国理政的基本方式,走出了一条中国特色社会主义法治
在窗体上画1名为Command1的命令按钮和1名Text1的文本框,再编写如下程序:DimssAsStringPrivateSubCommand1_Click()PrivateSubT
最新回复
(
0
)