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
2023-11-19
44
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、Arizona & Colorado
B、Arizona & California
C、Colorado &California
D、Arizona & Georgia
答案
C
解析
从句子“The researches based in California and Colorado describe...”得出。
转载请注明原文地址:https://tihaiku.com/zcyy/3201422.html
相关试题推荐
Nowscientistscannotrealize______soonthatexistingscientificknowledgeis
Asthecostofgasandoilforhomeheatinghasgoneup,manyAmericanshav
Asthecostofgasandoilforhomeheatinghasgoneup,manyAmericanshav
Asthecostofgasandoilforhomeheatinghasgoneup,manyAmericanshav
WhatkindofworkdidmostAmericanwomendoduringthe1940sand1950s?[br][
EverypeoplehasitsownspecialwordsandexpressionsliketheAmericanex
EverypeoplehasitsownspecialwordsandexpressionsliketheAmericanex
EverypeoplehasitsownspecialwordsandexpressionsliketheAmericanex
Thepolicecarriedouta(n)______searchforthemissingboy.A、completeB、entir
Americansthisyearwillswallow15,000tonsofaspirin,oneofthesafest
随机试题
Becausehumananatomydoesnotchange(exceptoverlongperiodsoftime),kno
InAmericaandmanyothercountries,onespecialkindofboxcontainsthef
Text3InhisbookTheTippingPoint,Mal
应用动态控制原理进行建设工程项目目标控制时,产生的纠偏可采取多种纠偏措施,下列纠
基金赎回费率不得超过基金份额赎回金额的( )。A.1.5% B.1% C.
百合固金汤的君药是A.地黄、熟地黄B.百合、麦冬C.地黄、麦冬D.玄参、麦冬E.
下列不属于劳动合同必备条款的是()A.社会保险 B.工作时间 C.工作
呼吸衰竭最主要的临床表现是A.呼吸费力伴呼气延长 B.呼吸频率增快 C.呼吸
(2020年真题)根据增值税法律制度的规定,一般纳税人提供的下列服务中,可以选择
企业应收票据贴现,应按实际收到的金额与其票面金额的差额,借记或贷记“管理费用”科
最新回复
(
0
)