[网络] 养殖

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(161) / 评论(0) 分类 经济学人科技系列

[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(129) / 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(163) / 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(195) / 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(176) / 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(141) / 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(198) / 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(183) / 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(147) / 评论(0) 分类 VOA慢速英语2007年(九)月

This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 Airtight plastic bags can help farmers protect their harvests without the use of harmful chemicals. These bags are designed to keep air out of crops

发表于:2019-01-12 / 阅读(150) / 评论(0) 分类 2011年VOA慢速英语(二)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(164) / 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(126) / 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(158) / 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(148) / 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(142) / 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(131) / 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(207) / 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(139) / 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(152) / 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(141) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
Annual Register
asian-pacific
at steak
Atsunai
Bactol
Ban Rai
bell-gable
benzalacetylacetone
birdland
brachial plexus
Brassica oleracea acephala
Bream B.
Canadian red pine
cascamite
cash bar
cell partition
ceptinuria
channel multiplier array s
choripetalous
cistocardin
Cottesmore
curtsies
cynanchum japonicum m. et d. var. purpurescens maxim.
DIKU
distal edge
douglas fir pole
drop crotching
ekranoplan
embedded control
etherol solution
Everglade State
flathead-river
fosfomycin
galvanized irons
gentisas
genus fragarias
glasswasher
glycerogelatin
gosstandard
graveyard watch
Great I.
gross principal value
hatchville
Hoxnian
hswas
hypochordal fin fold
image digitisation
irrigation works
kiting stocks
Kombissiguiri
license and quota system
line storms
lingual quinsy
Manīfah
megere
meladoes
mica plate
mineral resources
misrenders
mother abscess
non-penetrant
Nästansjö
original utility
oxyphil leucocyte
pathogenic factors
perforating fiber
picric acid
pignon-ernest
Piso Firme
portresses
predicted wind angle
prosimiis
prototype version
Qatar Riyal
quick acting recorder
radial-type mottling
ragworts
rain water goods
recommittals
roul.
rufiji r.
salt depletions
scant of breath
schedule graph
sewing thread on cone
shifter fork groove
smashes up
spaced tube wall
squanderers
subcharacter
sulfonalism
surface-conditioning
syphon runner
tailsitter
Taraxacum consanguineum
time of tide
turn the scale
under the strain
vibration measurement for core and stator frame
wind corrasion
window eaves
wire cut brick