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
If two scientists at Los Alamos National Laboratory are correct, people will still be driving gasoline-powered cars 50 years fro
If two scientists at Los Alamos National Laboratory are correct, people will still be driving gasoline-powered cars 50 years fro
admin
2012-02-29
62
问题
If two scientists at Los Alamos National Laboratory are correct, people will still be driving gasoline-powered cars 50 years from now, giving out heat-trapping carbon dioxide into the atmosphere — and yet that carbon dioxide will not contribute to global warming.
The scientists, F. Jeffrey Martin and William L. Kubic Jr., are proposing a concept, which they have named Green Freedom, for removing carbon dioxide from the air and turning it back into gasoline.
The idea is simple. Air would be blown over a liquid solution which would absorb the carbon dioxide. The carbon dioxide would then be extracted (提取) and subjected to chemical reactions that would turn it into fuel.
Although they have not yet built a synthetic fuel factory, or even a small prototype (原型), the scientists say it is all based on existing technology.
"Everything in the concept has been built, is operating or has a close cousin that is operating," Dr. Martin said.
The Los Alamos proposal does not violate any laws of physics, and other scientists have independently suggested similar ideas.
In the efforts to reduce humanity’s emissions of carbon dioxide, three solutions have been offered: hydrogen(氢-)-powered fuel cells, electric cars and biofuels. Biofuels are gasoline substitutes produced from plants like corn or sugar cane. Plants absorb carbon dioxide as they grow, but growing crops for fuel takes up wide strips of land.
Hydrogen-powered cars emit no carbon dioxide, but producing hydrogen requires copious (大量的) energy, and if that energy comes from coal-fired power plants, then the problem has not been solved.
Electric cars also push the carbon dioxide problem to the power plant. And electric cars have typically been limited to a range of tens of miles as opposed to the hundreds of miles that can be driven on a tank of gas.
Gasoline, it turns out, is an almost ideal fuel (except that it produces CO2). If it can be made out of carbon dioxide in the air, the Los Alamos concept may mean there is little reason to switch, after all.
"It’s definitely worth pursuing," said Martin I. Hoffert, a professor of physics at New York University. Other scientists also said the proposal looked promising but could not evaluate it fully because the details had not been published.
What is most remarkable about the proposal made by the two scientists?
选项
A、It is given a special name.
B、No law of physics is violated.
C、It is based on existing technology.
D、CO2 can be converted into fuel.
答案
D
解析
根据题干中的proposal和the two scientists将本题出处定位到第二段。该段提到,科学家杰弗里·马丁和小威廉·库比茨现在提出一种观念,这个概念就是将二氧化碳从空气中移除,并将其转化变回汽油。由此可知,将二氧化碳转化为汽油燃料是两位科学家提议的不寻常之处,故答案为[D]。[A]是针对构想的名字Green Freedom设的干扰项;[B]和[C]虽然在文中提到,但不是这一观念最引人注目之处,故排除。
转载请注明原文地址:https://kaotiyun.com/show/Izf7777K
0
大学英语四级
相关试题推荐
A、Businesspeople.B、Peopleonvacation.C、Peoplewhowanttoliveinahotel.D、Peoplewhowanttoliveattheseashore.B事实细节题
A、Theman.B、Thewoman.C、Themanandthewoman.D、Theman,womanandseveralfriends.C推理判断题。男士在信件的开头首先表明自己和妻子参加了旅行,在对话中间,女士也对该
A、140pounds.B、144pounds.C、150pounds.D、164pounds.B关键词题。本题的关键在于对数字的准确把握,需要进行简单的计算。女士在节食过程中,开始体重为150磅,前两个月减掉10磅,假期后又增加了4磅,进
MoreandmoreAmericansarereadingtheirowncreditreport.Creditreportsare【B1】______bylenderstodecidehowrriskyitwoul
MoreandmoreAmericansarereadingtheirowncreditreport.Creditreportsare【B1】______bylenderstodecidehowrriskyitwoul
Inrecentyears,moreandmoreforeignersareinvolvedintheteachingprogramsoftheUnitedStates.Boththeadvantagesandth
Inrecentyears,moreandmoreforeignersareinvolvedintheteachingprogramsoftheUnitedStates.Boththeadvantagesandth
Inrecentyears,moreandmoreforeignersareinvolvedintheteachingprogramsoftheUnitedStates.Boththeadvantagesandth
ConsideringthatTomhadworkedforthecompanyfor30years,___________(经理建议不要降低他的工资).
A、Hedecidedtocontinuehisproject.B、Hewasunabletogetsufficientmoney.C、Lackoflandpreventedhissuccess.D、Hewassu
随机试题
国际货物集装箱运输中使用的托运单,是集装箱运输最为重要的单据之一,每一联托运单都有专门的用途,其中标有“装货单”字样的第四联被用作是()
基金资产估值的最终目的是()。
某银行2012年初对国内整个房地产行业贷款8000万元,后由于我国房市震荡,造成银行无法按期收回贷款,该风险属于()
如果市场投资组合的实际收益率比预期收益率大3%,β=2,则证券i的实际收益率比预期收益率大()。
安全管理计划的制定,需要根据本单位的实际把带有周期性的、可预见的安全工作分类汇总,按照安全工作要求,分解到每个月,形成全年安全工作计划。安全管理计划可以采用文字形式或文字与图表相结合的形式。项目安全管理计划的实施就是进行项目安全管理的过程,是在项目实施过程
在信息技术整合的课堂中,学生每人拥有一台电脑并与教师的电脑相连形成局域网,同时配有网络教学监控系统。这属于()的课堂组织形式
随着社会的发展,人们经济生活水平的不断提高,老年人充实的物质生活已远不能替补内心的空寂,为了能让子女们上班放心,老年人在家安心,使他们的老年生活不再孤独和无助,我们动足了脑筋。以前,在乡下,邻里间开门就见面,关系好的就像自家人,互相都有个照应。可现在搬到这
“十一”期间,某市公交系统在许多线路上增加了临时站点,防止客流量在某地过度集中,以缓解重大节假日期间由人流聚集造成的交通堵塞状况。但实际看来,问题并没有得到解决。以下论断如果为真,无助于解释上述现象的是()
下列文学常识的叙述错误的是()。
Ifasubstanceisdissolvedinwaterorheated,itmay______agas.
最新回复
(
0
)