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
45
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
WhichofthefollowingisCORRECT?A、Theclimateinthesouthandnorthisveryt
BeautyandBodyImageintheMediaA)Imagesoffemalebodies
Nospecieshasdevelopedacloserrelationshipwithhumanitythanthedog,t
29岁,初孕妇,妊娠38周,规律腹痛4小时入院。单臀位,估计胎儿重3000g,骨
不符合异烟肼特点的叙述是A.可有神经毒性 B.治疗结核病的首选药 C.常单独
患者,男性,24岁。手指刺伤4天。劳动时左手中指末节指腹被刺伤,有少量出血,自行
批准:审查:申报A.烹饪:切菜:洗菜 B.跑步:走路:爬行 C.早退:迟到:
A.1:1 B.2:3 C.5:4 D.12:11
产品质量立法的基本原则主要有()。A.无限范围原则 B.有限范围原则 C
商业银行应当建立个人理财顾问服务的跟踪评估制度,定期对客户评估报告或投资顾问建议
最新回复
(
0
)