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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(84) / 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(50) / 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(69) / 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(90) / 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(107) / 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(105) / 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(68) / 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(124) / 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(123) / 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(90) / 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(97) / 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(64) / 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(86) / 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(79) / 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(68) / 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(64) / 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(111) / 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(82) / 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(89) / 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(74) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
AC-BLOCk
accented term
Alan Bates
almsfolk
ammonia salt
annual usage value
anterior dichotomy
anti-thixotropy
Anyi, L.
brass-work
British traditional costume
budget estimates unit
cable-destroyer
Cannock
cephalosporium chrysogenum
ciliatures
contact angle of saddle support
crooked timber
damage by forest animal
digital medias
divinghelmet
driwerie
Durco
dynamic storage analog computer
echoreaction
electro-slag welding with plate electrode
embedding theorem
encephalohemia
envelope of family of surfaces
Euler critical load
exclamatory pitch
field of play
flexible-drop chute
foot of slope
frame bending machine
fuseresistor
gate swap
genus Cheilanthes
glyptal resin
Grays Harbor
Gudiyattam
handselled
heat-resistance alloy
heteroclone
hospital admissions
hot cupboard
hum-bucking coi
icebreaking service
intermodal container terminal
iodosobenzene
It's a whack.
Kormilovskiy Rayon
Krupskoy, Mys
lax-
layer brick ice cream
magnetic read/write compatiable
Mahamet
maxillary tuberosity
meteor shower
nakok
nervous cord
nineteenness
no-steam operation
non-cumulative quantity discount
Norway Current
Norwegia
nymphomania
objuring
oil-scraping piston ring
orch-
parasitic transistor
pipe stem cirrhosis
pseudo-oxatriazole
rdpc
real-time channel
renstamin
rotary-kiln dryer
row-select
sale and purchase of ship
saturation indices
self-injurrious
Show Character Format Toolbar
smoking jacket
spring-tensioned oil seal
strict dominance
stud rivet
T iron
takeover certificate
the end of the story
thermo-remanent magnetization
toxicohemia
trailer rope
trip feeder
tubulates
Tuck.
unlegalized
unwhitewashed
venae chorioideae oculi
vigorious
vollary
Well begun is half done
working hourmeter