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
40
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
Poetrycanbecomparedtopainting.Whenyoulookataworkofart,youfir
[originaltext]W:Ican’tfigureouthowtoputthisbookshelftogether.Couldy
产褥期产妇乳房的主要变化是A.乳房增大. B.乳汁的产生 C.射乳 D.泌
喉部中最大的软骨是()A.杓状软骨 B.环状软骨 C.会厌软骨
学生认知方式的差异对学生的学习策略、学习方式有着重要的影响,那么学生间认知方式差
一般而言,影响客户风险承受能力的因素有很多,下列表述正确的有( )。 Ⅰ随着
邪正盛衰决定着A:病证的寒热B:病位的表里C:气血的盛衰D:病证的虚实E
可治疗阿米巴肝脓肿,又可以控制疟疾症状的药物是A.去氢依米丁 B.甲硝唑 C
医师周某与会计师郭某离婚后,12岁的女儿小红随周某生活。在下列哪些情况下法院对郭
关于砌筑砂浆的说法,正确的有( )。A、水泥混合砂浆强度等级分为5级 B、M
最新回复
(
0
)