标签：biomaterial 相关文章
If scientists have their way, we may someday be tapping maplesnot for pancake fixins, but for power. Because researchers from the University of Washington in Seattle have found theres enough electricity flowing in trees to run an electronic circuit.
Scientific American(九)月
Be sure to study hard for that test!要为考试努力学习! How many times have you heard that? But what does it even mean to study hard? Do you have to study until your head hurts? It sounds like it! 听过这句话无数次了?但是到底什么才
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Song：Takin' Back My Love Artist：Enrique Iglesias Feat. Ciara Red One, Ciara, Enrique Go ahead just leave, can't hold you, you're free / 想走就快走，我留不住你，就还你自由 You take all these things, if they mean so much to you / 你
英语热力歌曲
CHRISTOPHER CRUISE: This is SCIENCE IN THE NEWS in VOA Special English. Im Christopher Cruise. FAITH LAPIDUS: And Im Faith Lapidus. This week, we tell about sharks. We tell how demand for shark fin soup has led to the killing of millions of these cre
2011年VOA慢速英语(三)月
Mr Cavors Flying Machine When I first met Mr Cavor, he was about to finish building the machine in which he planned to travel to the moon．As it had neither wings nor an engine，I was amazed and asked him how his machine could fly．The secret lay
高中英语听力人教版第二册
A: I need a little help about where to dump my trash bags. B: Put them in the parking lot dumpster near the parking spaces. A: When is trash day? B: Trash day is Wednesday. A: Do they sort our recyclables, or do we do it? B: They expect us to take ou
地道英语对话-租房
This is the VOA Special English Agriculture Report. Spreading mulch Mulch is important to farmers. Mulch is a protective cover of material that is spread on top of soil. It is usually made out of organic material, like crop waste. Farmers may keep t
VOA慢速英语2007年（四）月
Turning Cigarette Butts to Batteries 烟头转变成电池 If you see a person carelessly throw a cigarette to the ground, what are you likely to think? That depends. If you hate people throwing things on the ground, you might think, That person shou
2014年VOA慢速英语(九)月
题目要求： The following chart shows the different attitudes of men and women towards down-to-earth marriage. Look at the chart carefully and write your response in about 200 words, in which you should interpret the chart, state the reasons and
英语作文
The APP, 'zenkr', allows students to participate in class, not through a show of hands, but by communicating through their smartphones. Users scan a QR code projected on screens with their smartphones or other devices and then answer questions. The r
2015CRI中国国际广播电台
Chapter 1 Unit 1 Greetings Conversation 1 W: Morning, Tom. M: Hi, Mary. W: You seem to be in a hurry. M: Yes. Ive got a meeting in a minute. W: Okay. I wont hold you up then. M: Right. Ill see you later. W: See you later. Conversation 2 W: Nice and
交际英语热门话题
SHIRLEY GRIFFITH: This is SCIENCE IN THE NEWS in VOA Special English. I'm Shirley Griffith. BOB DOUGHTY: And I'm Bob Doughty. Today we tell about two recent inventions that have helped to save lives. We will also tell about the people who developed t
2010年慢速英语(二)月
Science and Technology Plastics There and back again 科技 塑料 旧法新用 An old idea may help solve the problem of plastic waste 一个老方法也许可以帮助解决塑料垃圾的问题 PLASTICS were once regarded as wonder-materials. They
经济学人科技系列
Clare counts. I race around picking underwear and socks from the floor, collecting spoons and coffee cups from various horizontal surfaces and chucking them into the kitchen sink. As she says Nine hundred and sixty-seven, I remove the tie from her ey
时间旅行者的妻子
(47) A: Has our material been all right ? B: I'm afraid not . A: Maybe you should order a little better quality B: Yes, we might have to do that . A:我们的原材料没问题吧？ B:有问题呢。
实用英语
A new self-repairing material has been developed by researchers in the UK and they say itll be ready to integrate into everything from smartphone screens to nail varnish within the next five years. 英国研究员已开发一种能自我修复的新型
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The opening meeting of the First Session of the 12th National Peoples Congress will be held Tuesday morning at the Great Hall of the People in Beijing. Premier Wen Jiabao will deliver his government report to the opening meeting. 第十二届全国人民
CCTV9英语新闻2013年03月
Animal leather alternatives like Polyurethane and PVC leather may have solved the fashion industry's animal cruelty problem, but they are not the most environmentally friendly solutions. Pi?atex a new leather-like material made from pineapple leaves
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Burning here In my room Feeling bad The walls are moving closer Silencing, the darkness me Leads me to The ending of another day, a mourn day Tell me who you are I am spellbound You cannot have this control on me Everywhere I go I am spellbound I wil
英文摇滚歌曲
France In France，everyone has a Christmas tree，sometimes decorated in the old way with red ribbons and real white wax candles.Fir6) trees in the garden are often decorated too，with lights on all night.Father Christmas is called Pre Noel.The Chr
英语作文