首页
登录
职称英语
What is the main idea of the news item? [br] [originaltext] MIT chemistry pr
What is the main idea of the news item? [br] [originaltext] MIT chemistry pr
游客
2024-12-22
83
管理
问题
What is the main idea of the news item? [br]
MIT chemistry professor Daniel Nocera leaded research on the artificial leaf project, says he and his colleagues took their cues from plants, which are literally buzzing with electricity.
During photosynthesis, the energy in sunlight splits water molecules into hydrogen and oxygen. The hydrogen joins with carbon dioxide to make sugar, an essential fuel for plant growth.
In Nocera’s laboratory, scientists replicated that chemical process using a silicon device about the size and shape of a playing card, only thinner. It’s coated with nickel and cobalt catalysts that when exposed to water and ultraviolet light, accelerate a chemical reaction.
In laboratory experiments, Nocera’s solar cell prototype operated continuously for 45 hours without a drop in electrical output. Nocera notes that it works in any type of water. Nocera believes the artificial leaf could be especially useful as an inexpensive source of electricity for low-income populations in developing countries. The goal, Nocera says, is to make each home its own power station. He predicts a commercial version of the artificial leaf will be on the market within three years.
选项
A、be on the market within three years
B、increase the overall electrical output
C、replace the present source of electricity
D、be marketed to the developing countries
答案
A
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3879683.html
相关试题推荐
[originaltext]M:Youarenotstillwatchingtelevision,areyou?W:Ienjoyyou
[originaltext]M:Youarenotstillwatchingtelevision,areyou?W:Ienjoyyou
[originaltext]M:Youarenotstillwatchingtelevision,areyou?W:Ienjoyyou
[originaltext]TheoutgoingparliamentinthePalestinianterritorieshasvot
[originaltext]AstudyreleasedonTuesdaybytheAmericanCollegeofChestP
[originaltext]W:Goodmorning,Sam.M:Goodmorning,Mary,howareyou?W:Well
[originaltext]W:Goodmorning,Sam.M:Goodmorning,Mary,howareyou?W:Well
[originaltext]W:Goodmorning,Sam.M:Goodmorning,Mary,howareyou?W:Well
[originaltext]W:Goodmorning,Sam.M:Goodmorning,Mary,howareyou?W:Well
WhichofthefollowingstatementsisINCORRECT?[br][originaltext]Atthee
随机试题
【B1】[br]【B20】A、themB、theirsC、theirD、theyA在介词of后面,应该用宾格。
[audioFiles]2018m7s/audio_enaekmbm_070_201806[/audioFiles]对于我而言,一开始离开我的住所、工作、梦想
WhatproblemattheofficeareCathyandStandiscussing?[br][originaltext]W:
IrecognizedJohn________heenteredtheroom.A、hardlyB、theminuteC、nosoonerD
[originaltext]W:AreyougoingtothefairnextSaturday?M:Whatfair?W:The
钢板桩格型围堰适用于在岩石地基或混凝土基座上建造,其最大挡水水头不宜大于(
被评估资产为5年前购置的一套生产线,账面原值为100万元,运杂费、安装调试费约占
共用题干 甲房地产经纪公司(以下简称甲公司)受开发商委托,代理销售某楼盘。房地
在加强农村基础设施建设,改善社会主义新农村建设的物质条件方面,应做好的工作内容不
另煎的中药饮片是A.人参 B.西洋参 C.西红花 D.羚羊角 E.水牛角
最新回复
(
0
)