线性迟滞

The Mercury Mess By Samantha Levine / 2004, as first appeared in U.S. News nbsp; What are the dangers of mercury in fish? Can the mercury mess be cleaned up? 1 Are these fish safe to eat?” It’s a

发表于:2018-12-19 / 阅读(83) / 评论(0) 分类 彭蒙惠英语

Rare but Deadly By Susan Brink /2005, U.S. News World Report . All rights reserved with permission. Distributed by Tribune Media Services International. Simple, cheap blood tests could save thousands

发表于:2018-12-19 / 阅读(127) / 评论(0) 分类 彭蒙惠英语

Every week, more children arrive to work in the hundreds of primitive mines in the bush. Here they endure long hours at dangerous jobs, wringing flecks of gold from the dirt with mercury. One of them is a 12-year-old boy named Saliou. Momodou is just

发表于:2018-12-26 / 阅读(88) / 评论(0) 分类 自然百科2016年

People start stereotyping early. Even toddlers react positively to members of their own race, but often distrust those from different groups. The seeds of racism are planted in most everyone. Everyone, that is, except people with a rare genetic condi

发表于:2019-01-02 / 阅读(107) / 评论(0) 分类 60秒科学

By Lisa Schlein The UN Children's Fund, UNICEF, says Iodine Deficiency Disorders, which cause mental retardation, are a huge problem in Europe and Central Asia. UNICEF says this disorder can be solved

发表于:2019-01-03 / 阅读(86) / 评论(0) 分类 VOA2004(下)--健康科技

Callum:Hello. In recent programmes in this series, Who on Earth are we? Marc Beebys looked at some of the more obvious ways that cultures can be different from one another -the different ways we use language, or non-verbal communication, for example

发表于:2019-01-07 / 阅读(590) / 评论(0) 分类 英语讨论

People start stereotyping early. Even toddlers react positively to members of their own race, but often distrust those from different groups. The seeds of racism are planted in most everyone. Everyone, that is, except people with a rare genetic condi

发表于:2019-01-08 / 阅读(101) / 评论(0) 分类 Scientific American(四)月

Time now for StoryCorps. This oral history project is traveling the country, collecting interviews between friends and families. Today we hear from a daughter and her father. --My name is David Warm, I'm 51 years old. --My name is Mary Warm, and I'm

发表于:2019-01-08 / 阅读(159) / 评论(0) 分类 2006年NPR美国国家公共电台

This is the VOA Special English Health Report. Deep inside each cell in our body is all the genetic information needed for life. Human genes are normally organized along forty-six chromosomes -- twenty-three from each parent. David Petersohn of Libe

发表于:2019-01-11 / 阅读(164) / 评论(0) 分类 VOA慢速英语2008年(九)月

This is the VOA Special English Health Report. Human genes are normally organized along forty-six chromosomes in our cells, twenty-three from each parent. A school for people with Down syndrome in Mexico City But some people are born with an extra c

发表于:2019-01-11 / 阅读(59) / 评论(0) 分类 VOA慢速英语2009年(九)月

By Carol Pearson Washington 14 January 2008 For years autism has baffled researchers and devastated families. Autism typically appears in the first three years of life. Symptoms include problems with communication, difficulty forming relationships an

发表于:2019-01-13 / 阅读(68) / 评论(0) 分类 VOA标准英语2008年(一月)

The Lacandon are direct descendants of the Maya peoples who live in the jungles of the Mexican state of Chiapas. Until the mid-20th century, they had little contact with the outside world. As a result, the indigenous group was almost extinct. Today

发表于:2019-01-13 / 阅读(70) / 评论(0) 分类 VOA标准英语2009年(五月)

Room 212 Building 343 Tsinghua University, Beijing 100084 (010) 62771234 Email:good@tsinghua.edu.com xxx Objective To obtain a challenging position as a software engineer with an emphasis in software design and development. Education 1997.9-2000.6 De

发表于:2019-01-17 / 阅读(99) / 评论(0) 分类 实用英语

66 神秘的彗星

发表于:2019-01-30 / 阅读(130) / 评论(0) 分类 科技之光

数据结构基本英语词汇 数据抽象 data abstraction 数据元素 data element 数据对象 data object 数据项 data item 数据类型 data type 抽象数据类型 abstract data type 逻辑结

发表于:2019-02-01 / 阅读(82) / 评论(0) 分类 实用英语

这份简历是一个大学毕业生的英文简历,他寻求的职位是软件工程师,希望能在软件设计方面能发掘自己的潜能。由于刚毕业,没有多少经验,因此着重介绍了自己的能力和所学的课程。这份

发表于:2019-02-08 / 阅读(97) / 评论(0) 分类 实用英语

Before I talk about that, 谈到这之前 I've written down at the bottom there 我在底下标出了 the slope of this curve, this straight line. 这条曲线的斜率,即这条直线 It's three-quarters, roughly, 大约为3比4 which is less than

发表于:2019-02-13 / 阅读(108) / 评论(0) 分类 TED演讲教育篇

The average person in the United States watches almost five hours of television a day, more than an hour greater than the average of people in the world's biggest economies, new research says. 一项新研究发现,美国人平均每天看电视的时

发表于:2019-02-17 / 阅读(93) / 评论(0) 分类 阅读空间

这是一个令人心酸的故事,每个人都有权憧景新的生活,但年仅八岁的Philip除外,因为他缺乏憧憬未来的必要条件一个健康鲜活的生命,所以看看他的new life愿望吧,你一定被会为你的幸福感动

发表于:2019-02-20 / 阅读(68) / 评论(0) 分类 英语美文

kin n.家属(集合称), 亲戚, 同族, 血缘关系, 家族 adj.有亲属关系的, 性质类似的, 同类的 kit n.成套工具, 用具包, 工具箱, 成套用具 lapse n.失误, 下降, 流逝, 丧

发表于:2019-02-25 / 阅读(181) / 评论(0) 分类 考研英语
学英语单词
aeronautical mobile-satellite
alpha creek
ampyzine
anchor lights
arvella
attenuate infection
auto-protective tube
avandia
bio-polymer
bolster
Braguhé
Burayj
Certified Systems Engineer
chromel alumel couple
Clayton-le-Moors
co-present
cobordism class
commodity agreement
conveyer bucket
Cut-through switch
dastugue
data byte buffer
dehaust
dielectric body
dynamic data analysis
each and every accident
fact moods
fatty fishes
francisc
green technologies
grow flowers
hawse block
Heidmühlen
hermit crab sponges
high pressure servo-motor
Hoffman's nucleation theory
how do you pronounce this word
hydro-electric engineering
idleby
in sudden bursts
input/output bounded
inspiratory phase
interim maintenance
kaga
keep as new
kept your head down
Kitimat
Krupina
louse-cage
make up compressor
malicious prosecution
medium octavo
mesiopulpolabial
millilitre(ml)
mwanza
Nalón, R.
NATC
node specification
normal working hours
nuclei nervi facialis
nullity
Nynäshamn
old bag
ore-controlling structure
orthogeriatric
ossification of cranial suture
paintburner
pellicular stage
photo degradation
piuran
prechecking of rotor
Premna paisehensis
quelt
Rabdosia setschwanensis
radio dispatching communication for train
resource-poor
resplending
resultant pitch
rolling fulcrum
Samara River
scanning Auger electron spectroscopy
seasonal price differentials
selffeeder
shirt-sleeve
side-nettings
single-mast s/r machine
special mention
species richness
spherical fly
stock head
sub-surfaces
suggrundus macracanthus
sukh
suntans
surface explosion
tavromycetin
think critically
transient stage
vibration-proof material
viscous state
waste meterial
waste stock