首页
登录
职称英语
What is the main idea of the news item? [originaltext] MIT chemistry professo
What is the main idea of the news item? [originaltext] MIT chemistry professo
游客
2024-12-22
21
管理
问题
What is the main idea of the news item?
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、Photosynthesis accelerates a chemical reaction.
B、Artificial leaf turns sunlight into electric power.
C、Hydrogen joins with carbon dioxide to make sugar.
D、Sunlight splits water molecules into hydrogen and oxygen.
答案
B
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3879682.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]Bill:Hi,Howard.Whatareyouworkingnow?.Howard:Hi,Bill.Hi
[originaltext]Bill:Hi,Howard.Whatareyouworkingnow?.Howard:Hi,Bill.Hi
[originaltext]AstudyreleasedonTuesdaybytheAmericanCollegeofChestP
[originaltext]W:Goodmorning,Sam.M:Goodmorning,Mary,howareyou?W:Well
[originaltext]W:Goodmorning,Sam.M:Goodmorning,Mary,howareyou?W:Well
WhichofthefollowingstatementsisINCORRECT?[br][originaltext]Atthee
[originaltext]Interviewer:Onthematterofemployer-employeerelations,werea
随机试题
Tosavemoneyformyeducation,Motheroftentookonmoreworkthan______forher
Fatcannotchangeintomuscle______musclechangesintofat.A、anymorethanB、n
定期存款是个人事先约定偿还期的存款,根据不同的存款方式,定期存款分为4种。(
具有推动呼吸和血行功能的气是A.心气 B.肺气 C.营气 D.卫气 E.
下列极限式中,能够使用洛必达法则求极限的是( )。
个别发展项目因素、建筑物类型、地点等引起的项目风险属于()。A、系统风险
(2018年真题)社会工作者小张在社区培育了一支为老年人服务的志愿者队伍,并担任
关于集体合同,下列表述正确的是( )。A.我国劳动立法规定集体合同的期限为1~
肾阴虚的老年人宜选用的补益药是A.人参归脾丸 B.六味地黄丸 C.龟龄集
处方药名注霜,需要调配制霜品的是A.黄芩 B.半夏 C.木香 D.柏子仁
最新回复
(
0
)