批容许不合格率

From NPR News in Washington, Im Lakshmi Singh. The sell-out in major markets around the world is playing out on Wall Street. In late trading, the Dow plunged more than 400 points; its now down more than 500 points, or more than three percent. The SP

发表于:2018-12-02 / 阅读(94) / 评论(0) 分类 2015年NPR美国国家公共电台8月

JUDY WOODRUFF:We turn to education and the impact tougher discipline policies are having on minority students. It turns out young black and Hispanic students are far more likely to receive tough school punishments, including suspensions, than white s

发表于:2018-12-05 / 阅读(95) / 评论(0) 分类 PBS访谈教育系列

Pre-Listening Vocabulary defective: doesnt function normally; imperfect agreement: when the subject corresponds with the correct version of the verb panties: female underwear boxers: male underwear that is shaped like shorts wordsmith: a person who i

发表于:2018-12-17 / 阅读(87) / 评论(0) 分类 趣谈英语

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The ability to digest milk as adults, and as infants, actually, is due to the expression of an enzyme called lactase. That's the University of Pennsylvania's Sarah Tishk

发表于:2018-12-24 / 阅读(102) / 评论(0) 分类 Scientific American(二)月

发表于:2018-12-25 / 阅读(166) / 评论(0) 分类 中式口语纠错

President Bush wants to amend the U.S. Constitution to prohibit gay marriage. Senators are expected to begin debate on the proposed amendment in the coming week. --------------------------------------

发表于:2019-01-07 / 阅读(166) / 评论(0) 分类 2006年VOA标准英语(六月)

This is Scientific American's 60-Second Science. I'm Steve Mirsky. This will just take a minute. Remember the heady days of 2007 before the large economy sized recession? Well, even back then medical problems contributed to over 62 percent of all ban

发表于:2019-01-08 / 阅读(120) / 评论(0) 分类 Scientific American(六)月

By Greg Flakus Houston 02 November 2007 The US Border Patrol is expanding a program along the Mexican border in Texas through which illegal aliens are prosecuted and are subject to fines and imprisonment for illegal entry. As VOA's Greg Flakus report

发表于:2019-01-08 / 阅读(92) / 评论(0) 分类 VOA常速英语2007年(十一月)

By Kari Barber Dakar 24 August 2007 Election officials in Sierra Leone say they will announce a date for the presidential runoff on Saturday. Final results for the first round came in Thursday with opposition leader Ernest Koroma leading outgoing Vic

发表于:2019-01-13 / 阅读(156) / 评论(0) 分类 2007年VOA标准英语(八月)

US researchers reviewing more than a dozen studies say a defective gene that has been implicated as a cause of major depression does not appear to elevate a person's risk for the mood disorder. The finding is viewed as a setback for researchers tryi

发表于:2019-01-13 / 阅读(110) / 评论(0) 分类 VOA标准英语2009年(六月)

ROBERT SIEGEL, HOST: The climate surrounding sexual harassment has changed drastically in the past few years, and Americans overwhelmingly favor a zero-tolerance policy. Those are findings of a poll NPR conducted with the firm Ipsos. NPR's Danielle K

发表于:2019-01-16 / 阅读(95) / 评论(0) 分类 2017年NPR美国国家公共电台12月

A: How can I help you today? B: I am returning something that I bought yesterday. A: What would you like to return? B: I'm returning a cellphone. A: Was there somethinig wrong with it? B: It's defective. A: What isn't working on it? B: It keeps turni

发表于:2019-01-20 / 阅读(104) / 评论(0) 分类 购物英语对话

How much alcohol the yeast can tolerate depends partly on the type of yeast. And thats another reason wine is stronger than beer: beer-yeast, with a lower tolerance for alcohol, is killed by the time the alcohol reaches about nine percent. Wine-yeast

发表于:2019-01-22 / 阅读(75) / 评论(0) 分类 英语时差8,16

Remember the heady days of 2007, before the large economy sized recession? Well, even back then medical problems contributed to over 62 percent of all bankruptcies. Thats according to a study by researchers at Harvard Med, Harvard Law and Ohio Unive

发表于:2019-01-30 / 阅读(159) / 评论(0) 分类 60秒科学

15 科技新闻摘要(四) DATE=5-8-01 TITLE=SCIENCE IN THE NEWS #2123 - Digest BYLINE=Staff VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Sarah Long with Science in the News, a VOA Speci

发表于:2019-01-30 / 阅读(126) / 评论(0) 分类 科技之光

Climate change is already beginning to hurt maize and wheat production, according to a new study. Higher average growing season temperatures(温度) in most major grain-producing countries are beginning to work against the progress made by improving

发表于:2019-02-03 / 阅读(120) / 评论(0) 分类 英语新闻

Buying a house for most of the people is a once in a lifetime decision, which means people decide to do so only after coming across the ideal house. Surprisingly, eight in every 10 home buyers are unhappy with their houses. A survey conducted by the

发表于:2019-02-07 / 阅读(84) / 评论(0) 分类 实用英语

Buying a house for most of the people is a once in a lifetime decision, which means people decide to do so only after coming across the ideal house. Surprisingly, eight in every 10 home buyers are unhappy with their houses. A survey conducted by the

发表于:2019-02-18 / 阅读(93) / 评论(0) 分类 实用英语

Wine And Beer: Different Types Of Alcohol, Same Basic Process Why wine is stronger than beer on this moment of science. Wine and beer are made of different ingredients,but the basic process is the same. You start with a liquid containing some kind of

发表于:2019-02-24 / 阅读(129) / 评论(0) 分类 英语听力文摘 English Digest

So this is what happens. They come in, they spit into a vial, for two minutes, we say, You need to do this or this. 这就是实际的情况。他们走了进来,他们把唾液吐到一个小瓶子里,维持一个姿势达两分钟,我们说:你

发表于:2019-03-04 / 阅读(155) / 评论(0) 分类 TED演讲教育篇
学英语单词
a drop
a yellow
acceptance of shafting
Advanced Scientific Computer
air sanitation
andy
armida
asymmetrical hearing loss
atlo-
baldnesses
behavioral shaping
biological effects of optical radiation
chaquita
Chingiacanthus
commandlet
complicit masculinity
conswade
Corbin City
corynebacteriophages
Cottarelli
database structure
dense random packing
doxes
drug-using
dusked
el-arousse
elbow-shaped
engineering environmental geology
Etacin
farceuse
farm chemicals
Fitzcarrald
flannelleaf
fluid retention
font manager
glottal plosive
goldfarb
have one's a close eye upon
high impedance microphone
high-pressure alkylation
immersed rheostat
Indian mongoose
input output multiplexer
insense
integral construction
inthralment
jeric
klavas
Lecheguilla
literal data
machine safety
magnetic-energy-storage spot welder
magnevist
matrix steels
maximization of structural parameters
monochlamys
my lamb
myelodysplasis
myxothiazols
nanocatalyst
nettleman
non-ionic surface-active agent
orangists
Ouanda-Djallé
pant for
patriotized
petrera
piler bed
pivoted float
plateau diffusion
polypivalolatone
pressure density
principle of shifting
product separator
quittner
repeatability of measurement
requite an obligation
resourcelessness
saint-exupry
savons
Sawacillin
single mottle yarn
singlestaffs
Smilax glabra Roxb.
smokestacks
speak-back circuit
telepressure gauge
terminal variable
tetraxial
the sere and yellow leaf
thermal coalescence
thio-TEPA
tidal-power generator
transdneister
Two negatives make an affirmative
Urus-Martanovskiy Rayon
what is it now
widespread shower
work report
worshipless
zinc plating