精子抗力试验

This is the VOA Special English Education Report. More than half the teachers in the Houston Independent School District, the largest in Texas, have earned merit pay awards this year. Marjorie Hunt-Bluford is one of them. The idea seems reasonable.

发表于:2018-12-07 / 阅读(58) / 评论(0) 分类 VOA慢速英语2007年(九)月

World Action Needed to Prevent Widespread Antibiotic Resistance Since the discovery of penicillin in 1928, we have used antibiotics against a host of infections. But now, doctors are finding that more and more bacteria are resistant to even the stron

发表于:2018-12-08 / 阅读(71) / 评论(0) 分类 VOA标准英语2015年(十二月)

Tip(诀窍),resistance F: take up(获得) any sales tips? M: sure, give you 10% off and let you loose (放任自由)in my store F: I admit it. My sales resistance(对推销的抵制力) is low. M: your sales resistence is not existent. F: Im a pushover(容易被

发表于:2018-12-16 / 阅读(156) / 评论(0) 分类 VOA 商务英语

RACHEL MARTIN, HOST: A wide-ranging study shows that sperm counts are plummeting throughout the Western world, and scientists don't know why. NPR health correspondent Rob Stein suggests some of the potential reasons. ROB STEIN, BYLINE: In Margaret At

发表于:2018-12-17 / 阅读(88) / 评论(0) 分类 2017年NPR美国国家公共电台7月

Cambridge 8 TEST 4 1. middle-year education=lower secondary school 中学2. format=pattern n.格式 3. less successful student=struggler 差等生4. key=contributing factor=important=major=significant=critical n.关键5. achievement=attainment=progre

发表于:2018-12-18 / 阅读(87) / 评论(0) 分类 雅思英语

28 Fred Smith Fred Smith: Most of the time, the biggest 1)risk that an 2)entrepeneur has to face, in my mind, is 3)internal. They have to decide that this is the thing that they want to do with their time and their life more than any other thing, be

发表于:2019-01-01 / 阅读(149) / 评论(0) 分类 名人名篇

The spokesman for the Lord's Resistance Army says Congolese forces and U.N. peacekeepers in Congo Kinshasa are preparing to move against the rebel group, which has yet to sign a peace deal to end a 20-year reign-of-terror in the region. VOA Correspo

发表于:2019-01-06 / 阅读(131) / 评论(0) 分类 VOA标准英语2008年(九月)

This is the VOA Special English Agriculture Report. Not all research begins with a plan. Some studies begin by accident. Meredith Schafer says that is what happened with her and Cynthia Sagers. Cynthia Sagers is a biology professor at the University

发表于:2019-01-12 / 阅读(59) / 评论(0) 分类 2010年VOA慢速英语(九)月

Antibiotics Breed Drug Resistance in Pigs Pigs given low doses of antibiotics had more E. coli in their guts, and that bacteria showed an increased resistance to antibiotics, according to new research. The study confirms the routine practice of feedi

发表于:2019-01-13 / 阅读(73) / 评论(0) 分类 VOA标准英语2012年(一月)

Vidushi Sinha | Washington, DC 18 May 2010 The World Health Organization calls antibiotic resistance one of the three greatest threats to human health. Experts fear antibiotic resistance puts humans in danger of becoming nearly defenseless against so

发表于:2019-01-13 / 阅读(120) / 评论(0) 分类 VOA标准英语2010年(五)月

Kenya: Misuse of Antibiotics Leading to Resistance by Immune System NAIROBI In Kenya, the rise of drug resistant bacteria could reverse the gains made by medical science over diseases that were once treatable. Kenyans could be at risk of fatalities a

发表于:2019-01-14 / 阅读(95) / 评论(0) 分类 VOA标准英语2015年(一月)

As Assault On Mosul Looms, Resistance Grows And ISIS Grows More Brutal play pause stop mute unmute max volume 00:0003:43repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your

发表于:2019-01-17 / 阅读(90) / 评论(0) 分类 2016年NPR美国国家公共电台10月

A Letter to my Future Self写给未来自己的一封信In 1994 I wrote a letter. I stuck it in an envelope, put it away and completely forgot about it. 1994年我写了一封信,我把它装进信封收起来,就完全忘记了。 It wasnt until

发表于:2019-01-17 / 阅读(73) / 评论(0) 分类 英语口译

Artemisinin, also known as QingHaoSu in Chinese, was discovered by Chinese scientist Tu Youyou. She received the 2015 Nobel Prize for Physiology and Medicine for the drug's discovery by her team more than three decades ago. In her speech at the Karol

发表于:2019-01-19 / 阅读(139) / 评论(0) 分类 2015CRI中国国际广播电台

Wk 30 (25 July 1978) World's First Test Tube-Baby Is BornThis Week in HistoryLouise Brown, the world's first test tube baby, is born in Manchester, England. In 1978, the world's first test tube baby, Louise Brown, was born in Oldham and District Gene

发表于:2019-01-22 / 阅读(74) / 评论(0) 分类 英语新闻与报道—News and Reports

Artemisinin, also known as QingHaoSu in Chinese, was discovered by Chinese scientist Tu Youyou. She received the 2015 Nobel Prize for Physiology and Medicine for the drug's discovery by her team more than three decades ago. In her speech at the Karol

发表于:2019-02-04 / 阅读(65) / 评论(0) 分类 英语新闻

By David McAlary Washington 10 January 2007 One of the main weapons to prevent mother-to-child transmission of the AIDS virus during birth is the drug nevirapine. But when nevirapine is used alone just once, HIV starts becoming resistant to it. Rese

发表于:2019-02-04 / 阅读(101) / 评论(0) 分类 2007年VOA标准英语(一月)

Beijing, Sept. 6 (Xinhua) -- A sperm donation scandal disclosed recently has aroused growing concern in the United States. According to the New York Times' report, Ryan Kramer, the son of a donor, found that he has more than 150 half-siblings - they

发表于:2019-02-04 / 阅读(94) / 评论(0) 分类 英语新闻

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(222) / 评论(0) 分类 英语新闻

爱的反抗力 Muse - Resistance Resistance Muse Is your secret safe tonight? And are we out of sight? Or will our world come tumbling down? Will they find our hiding place? Is this our last embrace? Or will the walls start caving in? (It could be w

发表于:2019-02-05 / 阅读(82) / 评论(0) 分类 好听的英文歌曲
学英语单词
a day before the fair
agreement to sell
alginic acid sodium salt
antecedaneous
anti-reverse system
antiskid shoe
apostating
atrophoderma neuriticum
autoboxed
auxiliary store
Back to the salt mine
bandpass tuning
bar code length
bolshezemelskaya tundra (great tundra)
celtis australiss
ceratocorys horrida
clambake
clearing heat in indigestion
continued fraction expansion
CSCS (core spray cooling system)
culbicle method
decision.
deseasonalized data
Display PostScript
Eadbald
eccentric fastening stud
eerinesses
engine data logger
Enoshima
fernquist
financial variable
florissant
framing pulse
froliks
gelbes
gunshed
Hellinger-Reissner principle
hierarchical file
hydronian
iambic tetrameter
indigophera enneaphylla
Indocalamus guangdongensis
induced bacterial antagonism
inferior agriculture
interpretation of well testing data
job definition statement
kilowatt hour metre
legal rationality
Listera ovata
macrophage growth factor
make a plea for
malconstruction
microwave communication system
momulvs
Neisseria gonorrhoeae
non-combustible construction
noninitiative
nonius instrument
oil soluble group
operating staff retraining
ordan
ozazone
p20-CGGBP
paging word
patrolwomen
pensement
PFMEA
phenylethy lamine
phonemically
piggybackers
plugtype
pre-completion sand control
product break even chart
put an idea into sb's head
quarter-turn stair
regressor
reinsertion
relection characteristics
rootstock grass
rule absolute
S-M
semiapologetically
single template jigger
sneaks out
spill the dirt
Stave L.
striking bead
Svan language
system symbol
tangential hole
technical detection
telebrief
three-thread overlock
tube stub
unrotten
usuaries
vandellia crustacea bentham
Varzaneh
verive
voight
white rice yield from paddy
zokor