首页
登录
职称英语
The search for a cheap alternative fuel has led American scientists to study the
The search for a cheap alternative fuel has led American scientists to study the
游客
2024-11-02
1
管理
问题
The search for a cheap alternative fuel has led American scientists to study the potential of______. [br]
The search for a cheap alternative fuel to take the place of petroleum has led American scientists to study the potential of pond water. They are interested in a green scum known as algae that forms on the surface of stagnant pools. Helen Briggs reports from Washington: "Scientists have found a way of harnessing the natural ability of algae under certain conditions to make pure hydrogen gas from sunlight and water." The researches based in California and Colorado describe the new discovery as the equivalent of striking oil. But there are still big obstacles to be overcome. The technique’ s only been tried on a small scale in a laboratory and to be commercially viable, use of hydrogen and gas must be increased by a factor of ten. If they do manage to make the process work, perhaps in 20 years’ time, researchers say a small pond of algae could produce enough hydrogen gas to meet the weekly fuel needs for a dozen or so cars.
选项
A、weekly
B、monthly
C、yearly
D、daily
答案
A
解析
分析句子“If they do manage to make the process work…fuel needs for a dozen or so cars.”得出。
转载请注明原文地址:https://tihaiku.com/zcyy/3827449.html
相关试题推荐
I’musuallyfairlyskepticalaboutanyresearchthatconcludesthatpeople
I’musuallyfairlyskepticalaboutanyresearchthatconcludesthatpeople
I’musuallyfairlyskepticalaboutanyresearchthatconcludesthatpeople
ThesearchforacheapalternativefuelhasledAmericanscientiststostudythe
ThesearchforacheapalternativefuelhasledAmericanscientiststostudythe
Researchershaveestablishedthatwhenpeoplearementallyengaged,biochemi
Themainpurposeoftheresearchis______[br][originaltext]W:Excuseme,cou
Themainpurposeoftheresearchis______[br][originaltext]W:Excuseme,cou
Themainpurposeoftheresearchis______[br][originaltext]W:Excuseme,cou
DecadesbeforetheAmericanRevolutionof1776,JesseFish,anativeNewYo
随机试题
Withthundercloudsloomingoverthetrans-Atlanticeconomy,itwaseasytom
青年男性,因左额部及左上眼睑出现疼痛即自涂"驱风油"治疗2天没减轻,之后局部起皮
提出“以美育代宗教”著名观点的是()。A.王国维 B.徐悲鸿 C.鲁迅
如果股票市场是一个有效的市场,那么股票市场上( )。 Ⅰ.存在价值低估的股票
题目:《折纸》 2.内容: (1)折纸艺术起源于中国,历史悠久,它是-种以
Thechangeinthatvillagewasmiraculou
n为100以内的自然数,那么能令2n-1被7整除的n有多少个?A.32 B.3
下列关于物业管理与社区管理的关系,说法错误的是( )。A.物业管理寓于社区管理
A.抗癫痫药 B.氢化可的松 C.灰黄霉素 D.甲基多巴 E.镇静药可以
下列项目中,在计算联合试运转费时需要考虑的费用包括()。A.试运转所需原料
最新回复
(
0
)