[网络] 保守序列;保守的片段

Shirley Sherrod: I enjoyed my work at USDA. As most of you know, I didn't work in government prior to about a year ago now. It only lasted 11 months. But I did enjoy that work and would want to see that work continue. I just don't think at this point

发表于:2018-12-02 / 阅读(144) / 评论(0) 分类 CNN2010年(八)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Its the time of year to take a look backand thats just what the journal Science did as they listed their most important breakthroughs of 2008. At the v

发表于:2018-12-02 / 阅读(194) / 评论(0) 分类 Scientific American(十二)月

图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh

发表于:2018-12-07 / 阅读(187) / 评论(0) 分类 数学英语

The statistics are stark and alarming.Populations of mammals, of birds, of fish declines between 1970 and the year 2014 by 60 percent globally.And in fresh water, habitats, the figure is some 83 percent.And its no surprise that human activity is main

发表于:2018-12-08 / 阅读(131) / 评论(0) 分类 VOA标准英语2018年(十一月)

My address will follow the classical sonata form of commencement addresses. The first movement, just presented, were light-hearted remarks. This next movement consists of unsolicited advice, which is rarely valued, seldom remembered, never followed.

发表于:2018-12-18 / 阅读(115) / 评论(0) 分类 TED演讲教育篇

Water is the source of life, a key factor in development and the essence of a harmonious ecosystem. With China's water environment deteriorating, and growing competition for water resources causing more disputes, both authorities and NGOs are realizi

发表于:2018-12-19 / 阅读(126) / 评论(0) 分类 世界各地新闻集锦

Meantime, Cape Town, the second most populated city in South Africa, is running out of water. Drought is a natural disaster that South Africans prone to. And for years, the amount of water being used in the country has exceeded the amount that's been

发表于:2018-12-20 / 阅读(171) / 评论(0) 分类 CNN美国有线新闻2018年2月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The human genome was sequenced, and in the process of moving that forward the technology that was developed was incredible. And because of their efforts in human genome,

发表于:2018-12-24 / 阅读(244) / 评论(0) 分类 Scientific American(十)月

Describing Order and Sequence Patrick: Okay, your first task is to put all of these files in order. Maya: Wow, there must be hundreds of files in this storeroom. How am I supposed to organize them? Patrick: Create a basic filing system. Put things in

发表于:2018-12-27 / 阅读(188) / 评论(0) 分类 2014年ESL之商务英语

When I was first learning to meditate, the instruction was to simply pay attention to my breath, and when my mind wandered, to bring it back. Sounded simple enough. Yet I'd sit on these silent retreats, sweating through T-shirts in the middle of wint

发表于:2018-12-28 / 阅读(211) / 评论(0) 分类 跟希哥学英语

H 单倍体 haploid haploinsufficiency 造血干细胞 hematopoietic stem cell 血友病 hemophilia 杂合子 heterozygous 高度保守序列 highly conserved sequence Hirschsprung病 Hirschsprung's d

发表于:2019-01-03 / 阅读(152) / 评论(0) 分类 医务英语

2009年12月四级写作真题及参考范文 Directions: For this part, you are allowed 30 minutes to write an essay entitled Creating a Green Campus. You should write at least 120 words following the outline below in Chinese。 1. 绿色校园的重要性, 2. 什么样的

发表于:2019-01-03 / 阅读(132) / 评论(0) 分类 四六级写作指导

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(211) / 评论(0) 分类 Scientific American(八)月

UN Warns Against Land Degradation A top U.N. advisor said on Friday that every minute, 23 hectares of land are degraded by drought and desertification. He said its damaging the economic, social and environmental pillars needed for sustainable develop

发表于:2019-01-13 / 阅读(147) / 评论(0) 分类 VOA标准英语2011年(十二月)

Kakamega Forest in Western Kenya one of country's last remaining stands Cathy Majtenyi | Nairobi, Kenya 24 November 2009 Mondia, found in Kakamega Forest, is a vine that has for centuries been used as a flavoring agent and medicine Kakamega Forest i

发表于:2019-01-14 / 阅读(126) / 评论(0) 分类 VOA标准英语2009年(十一月)

Crops of the Past Make a Comeback Farmers are among the first to feel the effects of climate change. For many in developing countries, the crops they relied on year after year no longer grow in abundance. As a result, farmers are not only looking for

发表于:2019-01-14 / 阅读(136) / 评论(0) 分类 VOA标准英语2013年(四月)

Located on the Svalbard Islands in the Arctic, the Global Seed Vault is home to millions of seeds. The facility is surrounded by permafrost and is naturally cooled to around -3 degrees Celsius. And the main vault is cooled even further to -18 degrees

发表于:2019-02-07 / 阅读(137) / 评论(0) 分类 英语新闻

A large excavator arrived at the No.4 Hospital Affiliated to Zhengzhou University on Friday morning and began demolishing the buildings of the radiological department and mortuary without any advance notice. Dozens of young men wearing camouflage coa

发表于:2019-02-14 / 阅读(150) / 评论(0) 分类 2016CRI中国国际广播电台

Listen to the schedule of a business trip. Fill in numbers l-8 to point out the sequence of the schedule. I'm leaving for Milan on the 7th of June. l'II arrive there on the 8th evening at about 7:OOpm. Then, l'II take a shuttle bus to the hotel. On t

发表于:2019-02-17 / 阅读(161) / 评论(0) 分类 英语听力练习题

MADRID, Feb. 18 (Xinhua) -- Real Madrid temporarily opened up a 13 point lead over FC Barcelona at the top of the La Liga thanks to a very comfortable 4-0 win at home to Racing Santander on Saturday. Despite his side returning to Champions League act

发表于:2019-02-18 / 阅读(105) / 评论(0) 分类 英语新闻
学英语单词
A ill workman quarrels with his tools.
a-goes-goes
aiolus
alto-rilievi
ambisyllabicity
backward tilt
bacteriotoxic endometritis
bank post bill
bankruptcies
be in a cleft stick
bilge-fire pump
bledisloe
boat train
bronchial breathing sound
buran
career training
clay size
coordinated system
d-hus
delane
dolings
dusklight
dynamic trial
extended bond
fast-transition theory
fip
fire door deflector
fluorinates
full wave rectifier
galatias
genus ceratopogons
geovany
glei alluvial brown soil
GM_grateful-or-thankful
goods sold over the counter
guggul
harzburg
havn't
hazen
Heyman's law
high accuracy measurement corridor
jadite
Kargopol'
label panel
lappet loom
levelling bulb
limin
mangoade
membranolysis
milk solids
Mohammid
moistening of mixture
mopied
moreton bays
mucous inflammation
nicened
nidulans
nondestructive testing method
nonsports
numerical positioning control
oecetis spatula
offors
ototopicals
paleo-
paleological
palpebration
phrenoplegia
pluckings
restrictive method of selection
scholarchs
self-regulation rate
selling point
service-test machine
sexing
shatei gashira
single-frequency
sound absorbing
suicide doors
synthesis catalyzed by RNApolymerase
Table Round
tapping unit
tartrelic acid
terminal node
Thomas, Lowell
Tirhut Division
trachearian
tradeth
transparency screen
transparent spots
tsao ch'i wu
tube type heat exchanger
unconformed
unsigned copy
vainess
Vanadio-ardennite
Vanghetti's prosthesis
Villiers, Frederio
volunteerings
wastoids
wheel skid
Yamatokoriyama
Yffiniac