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
2023-11-18
70
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:http://tihaiku.com/zcyy/3196564.html
相关试题推荐
Bytheendofnextmonthwe______thereviewontheresearchfindings.A、willfi
Researchershaveestablishedthatwhenpeoplearementallyengaged,biochem
HowmanyChineseAmericansarethereintheU.S.today?[br][originaltext]M:P
HowmanyChineseAmericansarethereintheU.S.today?[originaltext]M:Profess
Whatisthispassagemainlyabout?[br][originaltext]Scientistssayshark
Whatisthispassagemainlyabout?[br][originaltext]Scientistssayshark
Today,theworldwidewebcanbeusedbothtosearchinformationandtomak
Today,theworldwidewebcanbeusedbothtosearchinformationandtomak
Today,theworldwidewebcanbeusedbothtosearchinformationandtomak
Today,theworldwidewebcanbeusedbothtosearchinformationandtomak
随机试题
A、Atrailwaystations.B、Incinemas.C、Atrestaurants.D、Inhotels.D文章提及了开饭时间、房
[originaltext]Continuingoursurveyofthe19thcentury,let’stakealook
下列各句,属于误用否定的是( )。A.一个人即使办事认真,也不可能不犯错误
校对工作中的“对片”是将胶片与()核对。A.校样 B.原稿 C.三校样
中国驻某国大使馆设计 试题要求 1.任务描迷 我国拟在北半球某国修建
发挥作用最慢的利尿药是()。A.氢氯噻嗪 B.呋塞米 C.螺内酯 D.阿
注册会计师在了解及评价被审计单位内部控制后,实施控制测试的范围是( )。A、对财
血吸虫虫卵肉芽肿形成的机制主要是T细胞介异的几型变态反应A.都可以B.Ⅲ型变态反
保险合同成立后,保险人按()的时间开始承担保险责任。A.保险合同签订时 B.
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)