切茎繁殖法

Most college students in the United States choose their major, or main field of study for their degree, before or during their first year. For Saskia Fagan, making that choice was not easy. Fagan, who is now 31 years old, grew up in Takoma Park, Mary

发表于:2018-12-12 / 阅读(204) / 评论(0) 分类 2018年VOA慢速英语(一)月

Books and Arts;New film 文艺;新片上映 Method in the madness 疯狂中的理智 A searching look at what caused the split between Freud and Jung 深度挖掘:弗洛伊德、荣格决裂的原因 Psychoanalysis, as practised by Carl Jung and

发表于:2018-12-31 / 阅读(360) / 评论(0) 分类 经济学人文艺系列

Rwanda Invests in STEM Education for Girls Yvonne Kevia is an 18-year-old high school student in Rwanda. She wants to become a chemical engineer. She enjoys doing experiments and taking careful notes in her high school laboratory in Kigali, Rwandas c

发表于:2019-01-02 / 阅读(241) / 评论(0) 分类 2017年VOA慢速英语(十二)月

SCIENCE IN THE NEWS - Progress Made in Stem Cell Research By Caty Weaver, Jerilyn Watson, ... Broadcast: Tuesday, May 31, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I

发表于:2019-01-09 / 阅读(270) / 评论(0) 分类 科技之光

By Efam Dovi Accra 23 August 2006 In Ghana, a high court in the capital Accra Tuesday sentenced five robbers to more than 300 years in prison in what the police say is a clear sign the country is taking violent crime seriously. The spate of armed ro

发表于:2019-01-11 / 阅读(314) / 评论(0) 分类 2006年VOA标准英语(八月)

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell

发表于:2019-01-12 / 阅读(286) / 评论(0) 分类 2011年VOA慢速英语(二)月

Around the world, cesarean births are on the rise, and many experts think that's a bad thing. Now, a new study looks at one way that babies delivered by c-section are different. The number of surgical deliveries has been increasing for years. Some ce

发表于:2019-01-13 / 阅读(238) / 评论(0) 分类 VOA标准英语2010年(七)月

President Bush says he will veto legislation that would relax restrictions on embryonic stem cell research. There is growing bipartisan support in Congress for changing those rules. 布什总统表示他将否决要求放松对胚胎干细胞研究限制

发表于:2019-01-19 / 阅读(186) / 评论(0) 分类 VOA双语新闻 Bilingual News

Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use

发表于:2019-01-19 / 阅读(267) / 评论(0) 分类 世界各地新闻集锦

Im all for stem cell research. I know it is a huge issue at the moment. Lots of people dont like it. They say it is unethical and that it is playing God. Other people say we will create Frankensteins monster. Britain seems to be leading the world in

发表于:2019-01-24 / 阅读(285) / 评论(0) 分类 听一分钟英文-S

By Alex Villarreal Washington 28 February 2008 Adult stem cell therapy has successfully treated leukemia and other cancers for years, in the form of bone marrow transplants. A new study in the Journal of the American Medical Association [JAMA] finds

发表于:2019-01-25 / 阅读(401) / 评论(0) 分类 VOA常速英语2008年(二月)

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(279) / 评论(0) 分类 60秒科学

> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(367) / 评论(0) 分类 科技之光

BEIJING, Feb. 20 (Xinhua) -- A Monday report has urged for the increased use of legal methods to regulate private loans following a number of incidents in which the leaders of large companies were unable to pay back informal high-interest loans, forc

发表于:2019-01-30 / 阅读(350) / 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(430) / 评论(0) 分类 英语新闻

By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia

发表于:2019-02-17 / 阅读(293) / 评论(0) 分类 VOA常速英语2007年(十二月)

Japan's government and the country's central bank took action Thursday to dilute the yen. The Japanese currencys strong standing against the dollar is making exports more expensive, hurting efforts to revive the country's moribund economy. After many

发表于:2019-02-18 / 阅读(261) / 评论(0) 分类 英语新闻

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(333) / 评论(0) 分类 英语新闻

今天我们要学的词是stem from. Stem spelled s-t-e-m, stem; and f-r-o-m, from. Stem from是源自,来源于的意思。The UN said Syrian government forces are responsible for most of the violence stemming from the country's unrest. 联合国表

发表于:2019-02-18 / 阅读(266) / 评论(0) 分类 英语单词荟萃

在雅思听力考试中,sentence completion 即填句子题是必考题型。尤其当若干个填句子题在section3 和 section 4中连续出现的时候,往往给考生造成很大困难并导致失分。笔者在本文中将结合自己多年

发表于:2019-03-13 / 阅读(262) / 评论(0) 分类 雅思英语
学英语单词
a matter of notorious fact
Adi-Buddha
andriola
angulus infrasternalis thoracis
answering sign
antidep
apron-drive bridge
aquarellist
atebrin
automatic positioning system
Banchory
barring mechanism
be wide awake
beam of uniform strength
blank cheque
branched channel
breech loader
bustled
call roll
capital height
Cardena
cemented shale
change of tonus
charge pond
collapsed eye
committent
decimaltobinary
delayed gamma ray
differentiable operator
dimethylamino-azobenzene butter
dipneust
dipping launching
driflot
early-stage star
electric emergency engine telegraph
enteromerocele
epibion
epicondyle
error-correcting routine
exemplifie
explicit type association
fenmetozole
flowing film
griffinish
gross minus
harmonious equipotential system
hemostatic mechanism
hominization
illgner
in-bottle pasteurization
instrumental straggling
internal reflux
IT Service Management
junior year
last test step
level of information
Lewis base
Loriaux
Lyman ultraviolet
Lönsboda
main procedure
many materials for mulching
maurer sunshine chronograph
mercaptotropolone
meridianal velocity
microdrile
momentum-type mass flowmeter
Oenothera villosa
Oijen
orthotomous
overnighter
palmos
patrizio
pholidoteuthis massyae
poverty lines
racamier
range of cable
redamaging
rejoneador
resalinization
roting
salmi
sang-froid
schismatising
silicoglaserite
six-zero
slack fired
stone polygon soil
string of formulas
Strongylus elongatus
structure design
subsoilers
Surrenon
tall-grasses
thinline
tri-state circuit
triangular-rule
united arab emiratess
various color chlorinated rubber enamel
Walsura
yellow waxed paper
zeotype