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
2024-10-21
39
管理
问题
The search for a cheap alternative fuel has led American scientists to study the potential of ______.
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、sunlight
B、pure hydrogen gas
C、pond water
D、small stream
答案
C
解析
抓住句子"The search for a cheap alternative...study the potential of pond water."。
转载请注明原文地址:https://tihaiku.com/zcyy/3811124.html
相关试题推荐
HowmanyChineseAmericansarethereintheU.S.today?[br][originaltext]M:P
HowmanyChineseAmericansarethereintheU.S.today?[originaltext]M:Profess
Thescientistshaveabsolutefreedomastowhatresearchtheythinkitbestto_
Whatisthispassagemainlyabout?[originaltext]Scientistssaysharkshave
Today,theworldwidewebcanbeusedbothtosearchinformationandtomak
Today,theworldwidewebcanbeusedbothtosearchinformationandtomak
Today,theworldwidewebcanbeusedbothtosearchinformationandtomak
Today,theworldwidewebcanbeusedbothtosearchinformationandtomak
Today,theworldwidewebcanbeusedbothtosearchinformationandtomak
Today,theworldwidewebcanbeusedbothtosearchinformationandtomak
随机试题
[audioFiles]audio_ehbm_j40002(20082)[/audioFiles]A、Shedoesn’tknowhowto.B、S
Modernindustrialsocietygrantslittlestatustooldpeople.Infact,such
[audioFiles]audio_eusm_j78_001(20082)[/audioFiles]A、Themotherandtheson.B、T
A.若X→Y,X→Z,则X→YZ为F所蕴涵 B.若X→Y,WY→Z
在左心室收缩功能正常时,主动脉瓣重度狭窄的血流峰值速度应为A.>4.0m/s
“一个国家、一个民族或一个地区的经济强弱是动态的、可以浮动的,但是民族的文化却
安宫牛黄丸有的功效是A.清热解毒,安神定志B.清热开窍,安神祛痰C.清热解毒,开
7岁男孩,因眼睑水肿、血尿2天以急性肾小球肾炎收住入院,该患儿治疗早期最主要的措
从所给的选项中,选择最合适的填入问号处,使之呈现规律性: A.如上图所示 B
在评估培训效果时,()适用于调查面广、封闭式问题和开放式问题并重的调查。A:访谈
最新回复
(
0
)