蛋白质组成部分的分离

The happiness of life is made up of minute fractions the little soon forgotten charities of a kiss, a smile, a kind look, a heartfelt compliment. 生活中的快乐是由一些小片断组成很快被遗忘的亲吻、微笑、关爱的眼神、由衷的

发表于:2018-12-02 / 阅读(188) / 评论(0) 分类 Daily English-2017.02

by Jason Marshall A few months ago we talked about how to multiply fractions. Now that were comfortable doing this and weve talked about a few applications of multiplying fractions such as how to convert units and how to estimate how fast someone is

发表于:2018-12-07 / 阅读(213) / 评论(0) 分类 数学英语

by Jason Marshall In the last article, Is Multiplication Repeated Addition? we talked about what it really means to multiply two numbers. We found that the conventional meaning of multiplicationrepeated additionbreaks down when multiplying fractions,

发表于:2018-12-07 / 阅读(181) / 评论(0) 分类 数学英语

by Jason Marshall In the last episode, we talked about exactly what decimal points and decimal numbers are, and why they are so convenient to use. In the next few weeks were going to continue talking about decimals and their place in the world of mat

发表于:2018-12-07 / 阅读(220) / 评论(0) 分类 数学英语

As part of the cooperation between China and the UK in education, more and more British primary school teachers and their Chinese counterparts have been conducting exchanges in a bid to learn from each other. A group of over 30 Chinese math teachers

发表于:2018-12-24 / 阅读(165) / 评论(0) 分类 2018CRI中国国际广播电台

This is Scientific American 60 second Science, I am Sophie Bushwick, got a minute? Stuck on a tricky math problem? Start clapping. Grade school kids who learned about fractions through a rhythm-and-music-based curriculum outperformed their peers in t

发表于:2018-12-24 / 阅读(236) / 评论(0) 分类 Scientific American(三)月

图片1 图片2 by Jason Marshall In the last article, we discovered that integers alone are not sufficient to fully describe the world around uswe need the fractions existing between the integers too. (In learning that, we also learned that fraction

发表于:2019-01-02 / 阅读(302) / 评论(0) 分类 数学英语

图片1 图片2 by Jason Marshall A few articles ago, I asked if you ever found yourself at restaurants fumbling to figure out how much to tip; I guessed that you might occasionally resort to seeking advice from your smart phone; and I told you that

发表于:2019-01-02 / 阅读(335) / 评论(0) 分类 数学英语

by Jason Marshall Todays article is about decimal points and numbers and how theyre related to fractions. But first, the podcast edition of this tip was sponsored by Go To Meeting. Save time and money by hosting your meetings online. Visit GoToMeetin

发表于:2019-01-02 / 阅读(287) / 评论(0) 分类 数学英语

图片1 图片2 by Jason Marshall Do you frequently find yourself at restaurants with friends fumbling to figure out how to split the bill and calculate the tip? Have you ever resorted to seeking advice from your smart phone? Dont worry, we all have.

发表于:2019-01-02 / 阅读(329) / 评论(0) 分类 数学英语

Study: Protein in Mother's Milk May Prevent HIV Transmission to Infants研究发现母乳中蛋白质能预防艾滋病毒传播 From VOA Learning English, this is the Health Report. 这里是美国之音慢速英语健康报道。 Hundreds of thousa

发表于:2019-01-02 / 阅读(231) / 评论(0) 分类 2013年VOA慢速英语(十一)月

Almost all cells need iron to grow. Now, researchers have identified a link between the body's system for regulating iron and breast cancer. The discovery could help doctors predict the course of breast cancer disease and even help them decide the mo

发表于:2019-01-13 / 阅读(346) / 评论(0) 分类 VOA标准英语2010年(八)月

Which is correct: A dozen eggs is? Or A dozen eggs are? 哪个是正确的:a dozen eggs 'is' 还是 a dozen eggs 'are'? I remember being in elementary school, and my teachers making a big deal about the unit. 我记得上小学的时候,我们老

发表于:2019-01-17 / 阅读(211) / 评论(0) 分类 TED演讲教育篇

DNA analysis is a staple of crime scenesand crime shows, like HBO's The Night of or the old standby, CSI: We just need to get this to the DNA lab, confirm it's the victim's blood. And then, case closed. And it's not just for crime: DNA sequencing als

发表于:2019-01-20 / 阅读(237) / 评论(0) 分类 2016年Scientific American(九)月

SCIENCE REPORT – January 23, 2002: Aging Protein By Jerilyn Watson This is the VOA Special English Science Report. A new study suggests that a protein that protects animals from cancer early in life

发表于:2019-01-30 / 阅读(266) / 评论(0) 分类 科技之光

HEALTH REPORT-Heart Disease and C-Reactive Protein By Cynthia Kirk Broadcast: Wednesday, January 19, 2005 I'm Gwen Outen with the VOA Special English Health Report. American researchers have found evi

发表于:2019-01-30 / 阅读(267) / 评论(0) 分类 健康与经济

C-reactive protein is an indication of inflammation in the body, and, at high levels, is considered an early sign of future heart disease. It's a risk factor in a similar way that elevated cholesterol is a risk factor for heart disease, says Asheley

发表于:2019-01-31 / 阅读(208) / 评论(0) 分类 VOA标准英语2010年(三月)

Low-salt,low-protein diet can prevent kidney stonesA diet low in salt and meat can dramatically reduce the risk of kidney stones,according to an Italian study that could spell the end for the low-calcium diet that doctors have been recommen

发表于:2019-01-31 / 阅读(231) / 评论(0) 分类 阅读空间

Back in 2003, the UK government carried out a survey. 早在2003年,英国政府进行了一项调查。 And it was a survey that measured levels of numeracy in the population. 目的是了解国民的算术能力。 And they were shocked to find o

发表于:2019-02-14 / 阅读(191) / 评论(0) 分类 TED演讲科学篇

I remember the first time I got on a horse. I was two years old and we were watching a friend of the family ride. My mom agreed to let me take a short ride around the arena with the friend and that was it! I was horse crazy. From then on, I drove my

发表于:2019-02-22 / 阅读(230) / 评论(0) 分类 阅读空间
学英语单词
a feather in someone's cap
aeneolithic age
agammaglobulinemias
aluminium press
amritoside
asset prices
astration
auditory bulb
barometric non-periodic changes
beating effect
Beef State
Bio-testiculina
calla lily
CDSP
changer in gold and foreign exchange reserves
channel activity comparator
chock up
closed cycle gas turbine
cloth take-up motion
cnemitis
combined grade
condition of orthogonality
corrosion prevention
Coulagh
damelopre
Delphinium yuanum
denotee
diesel electric railway car
distemperoid
double pass purifying system
drought resistant
e-lance
eberthemia
efficiency of heat utilization
exception enable
experimental satellite communication earth station
facies medialis cerebri
foundation net
four figure system
frippak
fumehoods
functionated
fututrix
gastrointestinal influenza
Gelidocalamus annulatus
Gironde-sur-Dropt
greycoat
heat dissipating capacity
in high favor with
in the dark
inside micrometer calipers
isolated flyback regulator
isotope labelling
janapan
kaushal
kde
Korliki
letter subrogation
makuakane
now-in
one-for-all
optical delay circuit
over night
overfires
p-benzenediol
Paramecium coil
photogate
picky-picky
planing mill products
poddubny
primitive road
promise of value
scilence
seize resistant power
self-motivating
semi-cyclic double bond
sesamoiditis
sidestep.com
slave ships
snoozing
stay-safe
steam fish a la Poland
steerageway
steering rocket
superior vagal ganglia
tccu
tetranitro-glycerine
tombstone engineering
tubal air cell
turn away from
turn bridge
underground mining method
UPREIT
velvetings
vital tuberculin
wacken
wallydrag
weighted S-graph
whereinto
wind dispersal
z axis
Zanthoxyleae