[医] 氯化铁试验(检涎液中的硫氰酸,检水杨酸,检维生素A)

When kidnappers attacked a woman on a Guatemala City street and seized her baby daughter, DNA testing came to the rescue. The tests helped reunite the girl with her mother after the baby was left at a religious center with no identification. DNA test

发表于:2018-12-08 / 阅读(91) / 评论(0) 分类 2018年VOA慢速英语(七)月

New English Tests Beyond TOEFL, IELTS Since 1964, colleges and universities in the United States have used the Test of English as a Foreign Language, or TOEFL, to measure an international applicants level of English. Universities in English-speaking

发表于:2018-12-08 / 阅读(76) / 评论(0) 分类 2018年VOA慢速英语(九)月

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(106) / 评论(0) 分类 VOA标准英语2014年(六月)

Frogs Were Used In Pregnancy Tests Between 1930-1950, African clawed frogs were in great demand. These frogs were imported all over the world and used in labs for pregnancy tests. Technicians injected a sample of a womans urine into a female frogs hi

发表于:2018-12-19 / 阅读(93) / 评论(0) 分类 Facts-事实

Rese / Botswana speaker I think.. all people learn, because they give you the opportunity to evaluate how much you know and how far you've gone with whatever it is that you're learning, and they give you a chance to also see how close you are with yo

发表于:2018-12-28 / 阅读(95) / 评论(0) 分类 一起闲话英语-English Chitchat

I hate tests. Who was it who decided that tests are a good way to test your knowledge? Probably someone who liked putting students through pain. Tests are so unfair. People who are good at remembering lots of things for a short time are good at tests

发表于:2018-12-28 / 阅读(117) / 评论(0) 分类 听一分钟英文-T

By Scott Stearns White House 05 July 2006 President Bush says North Korea's missile tests have further isolated the reclusive regime. European and Asian leaders have joined the United States in condemning the test launches over the Sea of Japan. ---

发表于:2019-01-05 / 阅读(171) / 评论(0) 分类 2006年VOA标准英语(七月)

Ten US banks fail 'stress tests' 十个美国银行应力测试失败 Ten of America's largest 19 banks need a combined $74.6bn (50bn) of extra funds to boost(推进,提高) their cash reserves.(现金储备) That is the main finding of the so-called stress tests

发表于:2019-01-07 / 阅读(101) / 评论(0) 分类 英语新闻

Blacks, Latinos Score Lower on Tests than Whites, Asians White and Asian students continue to do better on tests than black and Latino students, says the U.S. Department of Education. This information, which comes from the governments 2015 Nation's R

发表于:2019-01-12 / 阅读(84) / 评论(0) 分类 2015年VOA慢速英语(十一)月

Are Children Taking Too Many Tests? Urban school systems in the U.S. give too many tests, says a new study. President Obama agrees. In an open letter to parents, he asks: Ive got a pop quiz for parents and teachers across the country. If our kids had

发表于:2019-01-12 / 阅读(113) / 评论(0) 分类 2015年VOA慢速英语(十一)月

By Greg Flakus Houston, Texas 24 November 2006 watch DNA report Millions of people around the world can trace their ancestry back several generations or more through oral history, family documents or government records of such events as marriages an

发表于:2019-01-12 / 阅读(152) / 评论(0) 分类 2006年VOA标准英语(十一月)

ARI SHAPIRO, HOST: The highest court in the state of Massachusetts is considering roadside sobriety tests, specifically whether the tests that police use to determine drunk driving can also prove a driver is high on marijuana. As NPR's Tovia Smith re

发表于:2019-01-16 / 阅读(86) / 评论(0) 分类 2017年NPR美国国家公共电台1月

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(98) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Currently, learners are required to take courses at driving schools before sitting theory and practical tests. They have to pay for the courses up front, and the schedule for lessons and exams is decided by the schools, most of which are located in r

发表于:2019-01-19 / 阅读(97) / 评论(0) 分类 2015CRI中国国际广播电台

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(145) / 评论(0) 分类 2016年Scientific American(一)月

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(105) / 评论(0) 分类 自然百科2009年

By Phuong Tran Dakar 25 April 2008 What started out as Africa Malaria Day was being observed worldwide for the first time on Friday. Health organizations have long said that most of the one million deaths every year attributed to malaria happen in Af

发表于:2019-01-31 / 阅读(108) / 评论(0) 分类 VOA常速英语2008年(四月)

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(99) / 评论(0) 分类 地道美语播客

Authorities in China have issued new regulations for road tests of self-driving cars, which will allow local authorities to sign off on vehicle tests that match local conditions, while ensuring that safety is the top priority. Xin Guobin, China's Vic

发表于:2019-02-22 / 阅读(75) / 评论(0) 分类 2018CRI中国国际广播电台

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(172) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
air transportations
Amcill-S
American Drug Manufacturers's Association unit
ammonium fluorophosphate
annual performance review
anoxolyin
anterior auricular arteries
artificial tween deck
baton dance
Biomox
bolyen
Bueum Kechil, Pulau
bus conductor
cactus dahlia
catoctin mountain
characteristic point
chickering
clearing away summer-heat and eliminating dampness
closed hypersurface
code walk
coming away
composite communication link
conductivity detector
continuous process vuleanizer
crescenting
decandrous
definitive entoderm
deloading
descendibility
design change request
drip tips
electroscopic
epicotister
face turning edge
family Scorpaenidae
firinge value
from dawn till dusk
gunpowders
handwhile
hegemonism
hidden memory
high-speed grounding switch
image match
in a rare degree
inpat
JNSC
jokefulness
karla
kleve (cleve)
Labium inferius
Lumbricomorpha
marlboros
metal-alumina-oxide-semiconductor memory
monopodial sympodium
muscle cell
non equilibrium ionization
oil-rich
on the anvil
open star
overcontributions
oxidative burst
paracoto
pay sand
pentamorphone
phase constituent
phylum protozoas
positive stop
present position
prunus mume var.laciniata maxim.
pseudocaranx dentex
pump rate
racking machine
raising crank
range of function
reactive fibre
retaining wall
ripston
rodes
self-governments
semi micro calorimeter
semi-functional
shaper weel
shareable variable set
silestone
silicon valley
silverer
skivey
soap suds
sobolev
soquel
South Branch
spot with
stibinidene
subdepartment
submittingly
swoonings
tadem
tail gun armature
thyristor supply
transient control
ultra-basic rock
Wollaston, Lake