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One common protein-contact prediction is that, if the side chain of one member of a pair of amino acids brought close together by folding is long, 一种比较普通的蛋白质接触预测就是,如果一对氨基酸的一个侧链折叠后很长,

发表于:2018-12-05 / 阅读(153) / 评论(0) 分类 经济学人科技系列

Some people eat to avoid being bored. Others to avoid doing something theyd rather not, like preparing a podcast. Now a report says we might eat to avoid fungi. Because warm-bloodedness, a condition that requires a lot of calories, may have evolved t

发表于:2018-12-24 / 阅读(101) / 评论(0) 分类 Scientific American(十)月

[00:00.00]Genetically Modified FoodsFeed the World? [00:03.67]If you want to spark a heated debate at a dinner party, [00:08.68]bring up the topic of genetically modified foods. [00:11.75]For many people, the concept of genetically altered, [00:15.46

发表于:2019-01-02 / 阅读(119) / 评论(0) 分类 晨读英语美文60篇

Supporting National Parks Through the Arts Artist Rosalie Haizlett starts every day by opening a map of the Great Smokey Mountains National Park. Over breakfast, she plans her walk for the day. She packs food and a sketch book, and then leaves for he

发表于:2019-01-03 / 阅读(152) / 评论(0) 分类 2018年VOA慢速英语(七)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. Thisll just take a minute. Bisphenol A. Also called BPA, it's used to make shatter-proof plastic known as polycarbonate, found in everything from water bottles to medical devices to

发表于:2019-01-08 / 阅读(186) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Think of the weirdest creatures you've ever seen in a sci-fi film. Now think of this: there are far stranger, albeit smaller, critters living in your o

发表于:2019-01-08 / 阅读(170) / 评论(0) 分类 Scientific American(十一)月

Orchids are among the most successful flowering plants, with more than 22,000 species around the world. And thats not just because of the obsession they inspire in their human fans. Researchers spent 10 years studying orchids in South Africa, where t

发表于:2019-01-08 / 阅读(132) / 评论(0) 分类 Scientific American(二)月

This is scientific Americans 60 second science,I'm Cynthia Graber.This will just take a minute.A coal mine can decrease the local environment but a Fungi may indivertantly help cleanup the mine with its own waste products. Researchers worked with the

发表于:2019-01-08 / 阅读(182) / 评论(0) 分类 Scientific American(七)月

1. Efforts to reach six Utah coal miners trapped more than 1500 feet underground will take at least three days. That's according to one of the mine's owners who says rescuers aren't sure the men survived the cave-in. There has been no word from them

发表于:2019-01-08 / 阅读(177) / 评论(0) 分类 美联社新闻一分钟2007

This is the VOA Special English Agriculture Report. Strip cropping Nigeria is the world's largest cowpea producer. Cowpeas are also called black-eyed peas. But there is always room for improvement. Recently, before the start of another farming seaso

发表于:2019-01-11 / 阅读(138) / 评论(0) 分类 VOA慢速英语2007年(九)月

Everyday Grammar: Unusual Plurals 英语日常语法:不寻常的复数 One fish, two fish, red fish, blue fish, goes the Dr. Seuss childrens story. Why isnt it two fishes? You may think, Ok, its hard to count fish so we group them all together. No p

发表于:2019-01-12 / 阅读(159) / 评论(0) 分类 2015年VOA慢速英语(九)月

AS IT IS 2016-09-15 What is Pneumonia and How Do You Get it? 什么是肺炎?怎么预防? This week, presidential candidate Hillary Clinton made news -- not for what she said, but for her health. 这一周,总统候选人希拉里克林顿(H

发表于:2019-01-12 / 阅读(123) / 评论(0) 分类 2016年VOA慢速英语(九)月

Science and technology 科学技术 Bioremediation 生物降解 Bottom feeders 清道夫平菇 A novel way of dealing with an unpleasant problem 解决烦人难题的新颖方法 For your delight and delectation 愿你欢愉 DESPITE their name, dispo

发表于:2019-01-16 / 阅读(151) / 评论(0) 分类 经济学人科技系列

《回到未来2》上映于1989年,片中主角从1985年穿越到了2015,演绎了对2015年的一系列怪异预测。 Although several of the film's predictions, like video calls and wearable technology, came true, Back to the Future II showe

发表于:2019-02-13 / 阅读(137) / 评论(0) 分类 阅读空间

11.Acids are chemical compounds that,in water solution,have a sharp taste, a corrosive action on metals,and the ability to turn certain blue vegetable dyes red. 12.Billie Holiday's reputation as a great jazz-blues singer rests on her ability to giv

发表于:2019-02-13 / 阅读(135) / 评论(0) 分类 托福英语

For most of that time of life on Earth, living organisms have been relatively simple -- single cells. 地球的大多数时间,生物体多是以简单的单细胞存在的。 But they had great diversity, and, inside, great complexity. 但是它们是

发表于:2019-02-14 / 阅读(121) / 评论(0) 分类 TED演讲教育篇

在我们的生活中,死亡是我们所有人必定会遇到的事情,无论是家庭成员还是宠物,甚至是你都将有终结之时。事实上,每分钟世界上大约就有100人死亡。但在人死之时到底会发生什么呢?

发表于:2019-02-17 / 阅读(198) / 评论(0) 分类 阅读空间

11. Acids are chemical compounds that, in water solution, have a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red. 11. 酸是一种化合物,它在溶

发表于:2019-02-18 / 阅读(132) / 评论(0) 分类 实用英语

1. 在并列连词(and, but, for, nor, or, yet )前使用,用来连接句中的各分句。 The principal reason for this is that none of them possesses chlorophyll, andsince they cannot synthesize their own carbohydrates, they obtain their supplie

发表于:2019-02-19 / 阅读(145) / 评论(0) 分类 托福英语

Well, mushrooms are merely one of many types of fungi. Not all fungi grow in soil. However, mushrooms and other fungi do resemble plants in many ways, so much so that scientists long classified fungi plants, but they know better now. Eating Habits Wh

发表于:2019-02-24 / 阅读(130) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
10000s
a beat
abrenine
adenosarcorhabdomyoma
air speed Mach indicator
anticoking treatment
antihyperphenylalaninemics
artificial choledochus
benign juvenile melanoma
Bisalbumin
bothof
brachypterism
Brazilian tinamous
Callorhinchidae
Casearia
coccyalgia
comedolytic
common bile duct dilator
complication of smallpox vaccination
continent sea
CPU sharing
cross slide unit
cryptotomography
da bomb
diaryl arsine trihalide
Dictyokinesis
digit arithmetic
estimated cost of dilapidation
extra high-pressure mercury vapor lamp
Fdr.
fore peak ballast tank
Fort Yukon Indian Reservation
Funkaceae
geingob
gravediggers
Harker-Kasper inequalities
have one's own way
heating time
Honshu
hyposulphites
indenter
interplicate
intrinsic safety barrier
JAFOs
kuromaku
landing agent
Leutasch
line drive pulse
low pressure discharge
Luschka's crypts
mait i.(maydh)
mash notes
Master of the Court of Protection
Misaka
motive column
mug book
Multimedia Message Service
mumbo-jumbery
Nidulariineae
nursimycin
odon-eki
penetrating trauma
pepper shaker
podlike
Premiers Crus
primary visual cortex
protochordal knot
put ... to the test
pyramid-like
quicktimes
radio-communication frequencies
range-velocity display
reactive dye
replait
root vector
Sacred College
scare the crap out of
single-sideband demodulator
small and medium business
smidths
social environment influence
stator winding insulation failure
stir bar
tabularise
tailorage
telephony carrier
the fur flies
the incredibles
time-constrained
torsion constant
trichosanthus
two-dimension memory (2D memory)
uncontaminated field
undertaxed
video camera recorder
vine discharge beater
Vinh Binh
wadboard extension
wagtails
weighted average contribution margin
women's day
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