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Scientists have long believed that a star explodes when it reaches the end of its life. This explosion is called a supernova. NASA, the American space agency, describes a supernova as the largest explosion that takes place in space. Recently, a team

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[00:05.77]A private American company says it has identified all the chemical pieces in the genetic material that shapes human life. [00:17.82]Celera Genomics Group says it has identified and named all the genetic parts of the material inside the nucl

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new a.新的；没经验的；重新开始的；新发现的 news n.新闻 newspaper n.报纸 next ad.其次 a.下一个 prep.靠近 n.下一个 nice a.美好的；正派的；令人高兴的；细微的 niece n.侄女，外甥女 night n.夜晚；黑暗

芬兰

Finland Finland is an enormous land of lakes and forests. It's the largest, totally unspoiled area in Europe. Around 65% of Finland is made up of forests. The genius of the Finns lies in their commitment and coexistence nature. On the other hand, nat

现在完成时的用法详解

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SSS 2009-10-09

If the human genome were put in a straight line, it would be over six and a half feet long. So how do you store all that DNA in a tiny nucleus? And have the cell manage it? Researchers explain how in a study featured on the cover of the October 9th i

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[0:0]notion noun novel概念,观念,想法 名词 小说 [0:50.7006]nowhere nuclear nucleus nuisance任何地方都不 核子,核能的 核心 讨厌的人,讨厌的东西 [1:37.1282]numerous nursery nylon众多的,许多的 托儿所,保育室 尼龙 [2:10.9287]objection objective obligation o

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The calculations focus on a strange quality of all matter. It's one that defies common sense. But it's fundamental to the work of Astrophysicists like professor Douglas Leonard. Solidity is an illusion. If I run up with my fist and punch a burg wall,

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But Zwicky was also capable of insights of the most startling brilliance. In the early 1930s, he turned his attention to a question that had long troubled astronomers: the appearance in the sky of occasional unexplained points of light, new stars. 然而

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医学病症词典四

binocular hemianopia Chinese双眼偏盲 binocular microscope Chinese双目显微镜 Binswanger diseaseChinese 宾斯万格病(皮质下脑病) biopsy Chinese活检 Biot's respiration Chinese比奥呼吸(间歇性呼吸暂停,见于颅内压增高) bipolar neuron Chinese双极神经元 bitampo

经济学人354:生殖技术 代孕妈妈

Reproductive technology 生殖技术 Mum, Dad and Mitomum 妈妈，爸爸与代孕妈妈 Britain may allow babies with three biological parents 英有望允许新生儿有三个亲身父母 ASSISTED reproduction is one of those rare areas in which Br

经济学人349:人类本质 什么是人类

Science and technology 科学技术 The nature of humanity 人类本质 What's a man? 什么是人类 Studies of brain genetics are starting to reveal what makes humans human 大脑遗传研究，为你解开人之所以为人的奥秘 THE problem wi

经济学人281:生育技术 英国通过三亲婴儿决议

Reproductive technology 生育技术 Oh, baby 噢，宝贝！ Britain's approval of babies with three genetic parents offers lessons for other countries 英国通过三亲婴儿决议，给他国带来的影响。 PLAYING God is what medicine is for.