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
32
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
Althoughcustomerskeepcomplainingabouttheirpoorservice,they’vemadeno___
Howlongdoesittaketocovertheworkbookmaterial?[br][originaltext]Be
Afast-foodrestaurantwithinabout500feetofaschoolmayleadtoatleas
WhattheHeckDoesVincentvanGoghHaveToDoWithInternetMarketi
我国5年期国债期货的可交割国债为合约到期月份首日剩余期限为()年的记账式附息国债。A、不低于5年B、5C、4~5.25D、4~6.25C201
下面几个关于样本均值分布的陈述中,正确的是( )。A.当总体服从正态分布时,样
我国自()起正式在全国范围内开展营业税改征增值税试点。A.2016年5月
小王小的时候非常顽皮,总是惹是生非,经常被老师找家长。每次惹事之后,爸爸都会狠狠
对发行上市的信息披露的基本要求不包括()。A:全面性 B:真实性 C:时效性
下列符合资本化条件的资产所发生的借款费用在予以资本化时,与资产支出不相挂钩的有(
最新回复
(
0
)