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
47
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 Colorado describe..."得出。
转载请注明原文地址:https://tihaiku.com/zcyy/3811125.html
相关试题推荐
Although______Americanliterature,hefailedtorememberthewriterofthemas
TheAmericansgotothecinemamainlyto______.[br][originaltext]Movies
TheAmericansgotothecinemamainlyto______.[originaltext]Moviesaret
RemembertheStoneAgedaysofresearchbackinelementaryschoolandmiddle
RemembertheStoneAgedaysofresearchbackinelementaryschoolandmiddle
Bytheendofnextmonthwe______thereviewontheresearchfindings.A、willfi
Researchershaveestablishedthatwhenpeoplearementallyengaged,biochem
Researchershaveestablishedthatwhenpeoplearementallyengaged,biochem
Researchershaveestablishedthatwhenpeoplearementallyengaged,biochem
HowmanyChineseAmericansarethereintheU.S.today?[br][originaltext]M:P
随机试题
Everyoneagreesthattheentirepopulationisatrisk,butsofarnoonehas____
人工智能技术中,( )学习方式制定了奖励/惩罚机制。A.监督式 B.非监督式
公路工程质量检验评定标准第一册土建工程》适用于()检测评定工作。A.普通公
2012年,甲企业在筹办期间发生了开办费900万元,经税务机关认定,可以分3年在
治疗绝经前后诸证的烦热失眠症状应选用的腧穴是A.心俞、神门 B.神门、大陵
初产妇,35岁,妊娠31周,曾人工流产2次。因近半个月反复少量无痛性阴道流血而入
《内经》认为,人是一个有机整体。《内经》的脏象理论认为,形神和谐是健康的象征,形
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
商业银行确定目标市场时,应综合考虑自身经营实力和特点,选择()目标客户群。A.
关于遗忘的规律,以下哪项是正确的A.过度学习迭150%不容易遗忘 B.具有识记
最新回复
(
0
)