[化] 偶联反应; 偶合反应

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: Researchers at Ohio State University studied exercise-induced asthma among top athletes at the school. Ohio State football players practice earlier this year.

发表于:2018-12-07 / 阅读(97) / 评论(0) 分类 VOA慢速英语2007年(十)月

This is the VOA Special English Health Report. Heparin is a blood-thinning medicine made from pig intestines, which often come from small farms in China. The drug is often used to prevent blockages during kidney dialysis treatment and different opera

发表于:2018-12-07 / 阅读(67) / 评论(0) 分类 VOA慢速英语2008年(四)月

This is the VOA Special English Health Report. An allergy is an unusually strong reaction to a substance. Many things can cause allergies. The most common cause is pollen. Trees usually produce pollen in the spring, grasses in the summer and weeds in

发表于:2018-12-15 / 阅读(73) / 评论(0) 分类 VOA慢速英语2007年(七)月

Lesson 4 Does Criticism Do More Harm Than Good to People? Text A Yoang Woman Who Fears Compliments Marya, a brilliant graduate student in her early twenties who came for consultation, insisted that she could improve only with criticism. Her reasoning

发表于:2018-12-16 / 阅读(180) / 评论(0) 分类 日常英语口语

2012 考研写作样句 5、If you should have any difficulty in getting immersed into the new environment, the Students' Union, me included, will always be there for you. 【译文】如果你们在融入新环境中碰到任何困难,学生会,包

发表于:2018-12-17 / 阅读(85) / 评论(0) 分类 考研英语长难句讲解

This is Scientific American's 60-Second Science. I'm Karen Hopkin, this'll just take a minute. Next time you are shoveling snow off your walk, don't blame the weatherman, blame bacteria. Because an international team of scientists has found that micr

发表于:2018-12-24 / 阅读(136) / 评论(0) 分类 Scientific American(二)月

Advice Asking for advice Can you help me straightenout? Can you straighten me out on? Help me sort out, will you? What would you do if you were me? What would you do if you were in my shoes? What would you do if in my position? What do you reckon I

发表于:2018-12-26 / 阅读(79) / 评论(0) 分类 交流方式的多种表达

One of the most popular tools on Apple's new iPhone X is its facial recognition system. This latest iPhone gives users the power to open the device just by looking at it. The smartphone has performed well in tests set up to trick it into opening for

发表于:2019-01-03 / 阅读(140) / 评论(0) 分类 2017年VOA慢速英语(十一)月

不良反应这一项中包括药物的副作用、症状及体征、毒性作用及耐受力、过敏反应、停药等。现分述如下: 1.不良反应的常用的英语表示法有: Adverse Reaction(s)不良反应 Unwanted(Untoward) R

发表于:2019-01-08 / 阅读(178) / 评论(0) 分类 医学英语

Facebook Reactions Much More Than a Like The Facebook like button was one of the social media websites most popular features. But now Facebook has added more emojis that users can click on to quickly express their feelings about a post. The five new

发表于:2019-01-12 / 阅读(123) / 评论(0) 分类 2016年VOA慢速英语(三)月

Lesson Nineteen 听力部分 Dictation: Please prepare your paper and pen. There are really __________ for _____ wine ______-_______________ a good corkscrew, ____, _______________, __________ the ____ of _______. The ______________ that most America

发表于:2019-01-14 / 阅读(144) / 评论(0) 分类 王强口语 第二册

And we believe that these responses in higher-order areas are induced or become similar across listeners 我们认为,听众这些相似的大脑高层次区块反应, because of the meaning conveyed by the speaker, and not by words or sound. 是由

发表于:2019-01-18 / 阅读(99) / 评论(0) 分类 TED演讲科学篇

By Carol Pearson Washington 07 May 2008 The World Health Organization expects the number of women who smoke to triple over the next generation, if current trends continue. As a result, it expects more than 200 million women to die from tobacco induce

发表于:2019-01-19 / 阅读(107) / 评论(0) 分类 VOA标准英语2008年(五月)

Ways to smile 微笑的方式 Give and maybe don't receive. 付出,也许无需有所得 College is a perfect time to get involved in volunteering for a cause. 大学是个为了一个目标参加志愿活动的绝佳时间。 No matter what your p

发表于:2019-01-22 / 阅读(97) / 评论(0) 分类 英语听力广播—Listening

Pill May Change Attraction In a study in the journal Trends in Ecology and Evolution, researchers note that the birth control pill may change a woman's choice in whom she finds attractive. Cynthia Graber reports Some people like to think theres somet

发表于:2019-01-30 / 阅读(146) / 评论(0) 分类 60秒科学

让人无语的电脑失忆症 各种电子设备用久了,我们好像都习惯了打拼音、选汉字。真正要拿笔写字的时候就会出现提笔忘字的情况,有关专家把这种现象叫做电脑失写症。 你有电脑失写症吗?

发表于:2019-02-02 / 阅读(118) / 评论(0) 分类 实用英语

BEIJING, Sept. 26 (Xinhuanet) -- Young unmarried migrant women are facing a high risk of induced abortions in China and experts urged that they have better access to reproductive health education. Among the 8 to 10 million induced abortions performed

发表于:2019-02-07 / 阅读(102) / 评论(0) 分类 英语新闻

LOS ANGELES, June 20 (Xinhua) -- About 8 percent of children, or nearly 6 million in the U.S., have a food allergy, a much higher rate than previously estimated, a new study suggests. Not only is this estimate higher than some previous research has r

发表于:2019-02-08 / 阅读(105) / 评论(0) 分类 英语新闻

The U.S. media is paying close attention to this years Two Sessions in China. Following Premier Li Keqiangs announcement that Chinas economic growth target for 2016 is between six-and-a-half and seven percent, there was immediate reaction in U.S. pap

发表于:2019-02-18 / 阅读(127) / 评论(0) 分类 cctv9英语新闻2016年

ATHENS, Oct. 27 (Xinhua) -- A new deal reached early Thursday at the European Union summit in Brussels to tackle the Greek debt crisis and avert contagion across the eurozone was met with mixed reactions in Greece. Opposition political parties, media

发表于:2019-02-19 / 阅读(252) / 评论(0) 分类 英语新闻
学英语单词
adapting pipe
alveolar process
ambled
anastomotic vein
antibuyout
atoxopyrimidine
avena rest
Bainet
bakelite papered plate
Betapred
black cab
bloody stool
blue columbines
book-value
centauromachy
circuit protection
commons
Copper-Lovchorrite
copper-rich matrix
coproplanesis
court-martialing
crepitations
crevecoeurs
cyclopentenylallylbarbituric acid
deforestations
desponding
extension of homeomorphisms
flaccidity syndrome
foil monitor
formlines
future computing
grand population variance
gutters out
helminthotoxins
hierarchical-cluster analysis
high strength welded pipe
high-speed cinematography
hostellers
Huntertown
interconnected cell
IRIC
iridium triiodide
Langerhans'layer
lexical attachment
libba
ligmentum popliteum arcuatum
line printing
loan-value ratio
longspurs
make someone's flesh creep
meckel's cartilage (or meckelian cartilage)
medalling
meningeal tumor
microimpurity
mob caps
nongame
nonheat-dissipating specimen
ocean floor basin
ounce strength
overbuilds
P.T.R.
paster
pectoral veins,venae pectorales
per-share
poisoning of the reactor
ponderations
possible reservers
postbourgeois
process loss
protective behavio(u)r
protective export duty
psychophysiologic
radish ripper
reembarking
research station
reticulum trabeculare
ruggia
salee
sampling process
seborrhea cerea
self organization
split carrier system
stator armature
sucker control
superexcellence
suspence
swimatlanta
talk it up
the gate of horn
the old leaven
tooled
u up
unanalyzably
underground water level
unthoroughfaresome
ursocycline
Whiteswan Lakes
wide wheel grinding
Wieliczki
woodland stage
xer-
zahariass