平均大气原子序数

by Jason Marshall In recent articles, weve talked about two methods of calculating average values, the mean and the median, and weve talked about some everyday uses for them such as how to use median averaging to get better photos. But thats not all

发表于:2018-12-07 / 阅读(280) / 评论(0) 分类 数学英语

Directions: Study the following graph carefully and write an essay in which you should 1) analyze the graph, and 2) give your comments on the trend. In recent years there has been a dramatic rise in the cell phones, which are now essential to mi

发表于:2018-12-18 / 阅读(159) / 评论(0) 分类 英语作文

Have you been having some trouble getting some digits lately when you ask a girl out? Maybe you should check what music is playing. Thats what French psychologists found. They published their research in the journal Psychology of Music. First the res

发表于:2018-12-24 / 阅读(229) / 评论(0) 分类 Scientific American(六)月

[00:05.56]Weather experts say this spring was the warmest in the United States in the past century. [00:13.66]They say the average temperature across the United States between March and May was about thirteen degrees Celsius. [00:23.07]That reportedl

发表于:2018-12-26 / 阅读(158) / 评论(0) 分类 美国英语听力80篇

Why Diamonds Really Are Forever Diamonds are forever they say, and this is why: diamonds are the hardest substance known to exist. Nothing would scratch or damage a diamond,While a diamond can scratch any other material on the earth. Everything is

发表于:2018-12-27 / 阅读(150) / 评论(0) 分类 英语时差8,16

by Jason Marshall In the last few articles, weve talked about decimals and how theyre related to fractions through the process of division. Now, its time to turn our attention to some practical applications of these tools. Up first today were talking

发表于:2019-01-02 / 阅读(316) / 评论(0) 分类 数学英语

by Jason Marshall In the last article, we learned that there are several ways to calculate the average value of a sample of data. We focused on one such method, the arithmetic mean, and used it to calculate the average number of potato chips in a bag

发表于:2019-01-02 / 阅读(268) / 评论(0) 分类 数学英语

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. Im Shirley Griffith. VOICE TWO: A NOAA satellite image of Hurricane Katrina, taken on August 29, 2005 And Im Steve Ember. Powerful storms are called hurricanes when they form over the At

发表于:2019-01-11 / 阅读(175) / 评论(0) 分类 VOA慢速英语2007年(九)月

By Paul Sisco Washington, DC 19 April 2006 watch Severe Weather report Several weeks of unusual and severe weather in the U.S. are not being specifically linked to global warming but they are causing

发表于:2019-01-13 / 阅读(226) / 评论(0) 分类 2006年VOA标准英语(四月)

C Isn't Average in All Schools Any More Theres an old, but often-played, song by the late Sam Cooke whose lyrics go, in part: Now I don't claim to be an A student But I'm trying to be. And so are millions of other American children each school term.

发表于:2019-01-13 / 阅读(193) / 评论(0) 分类 VOA标准英语2012年(五月)

BANKS On What Happens When You Give Your Fans Your Phone Number play pause stop mute unmute max volume 00:0004:21repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash

发表于:2019-01-16 / 阅读(191) / 评论(0) 分类 2016年NPR美国国家公共电台9月

The structure of atoms and the significance of protons will come in a following chapter, so for the moment all that is necessary is to appreciate the organizing principle: hydrogen has just one proton, and so it has an atomic number of one and comes

发表于:2019-01-29 / 阅读(200) / 评论(0) 分类 万物简史

C Isnt Average in All Schools Any More 字母不再用来表示成绩了 Theres an old, but often-played, song by the late Sam Cooke whose lyrics go, in part: 已故的山姆库克有首老歌经常有人表演,它的部分歌词是这样的: Now

发表于:2019-02-01 / 阅读(196) / 评论(0) 分类 VOA常速英语2013年(九月)

We now have a summary of our weather for last year. NIWA (the National Institute of Water and Atmospheric Research) put this summary on their website. NIWA is a company which is owned by the government. Scientists at NIWA do research on climate, the

发表于:2019-02-03 / 阅读(217) / 评论(0) 分类 新西兰英语

WASHINGTON, Jan. 27 (Xinhua) -- The number of Americans initially applying for unemployment aid last week rose by 51,000 from the previous(以前的) week, the U.S. Labor Department reported Thursday. The Labor Department said that the advance fi

发表于:2019-02-06 / 阅读(298) / 评论(0) 分类 英语新闻

WASHINGTON, June 23 (Xinhua) -- Last month was the hottest May since record keeping began in 1880, the U.S. National Oceanic and Atmospheric Administration (NOAA) said Monday. 图片1 The combined average temperature over global land and ocean surfac

发表于:2019-02-06 / 阅读(225) / 评论(0) 分类 英语新闻

Study the following graph carefully and write an essay in which you should 1) analyze the graph, and 2) give your comments on the trend. In recent years there has been a dramatic rise in the cell phones, which are now essential to millions of people

发表于:2019-02-18 / 阅读(156) / 评论(0) 分类 英语作文

You might think that just one cigarette 'can't hurt'. But it could in fact cost a smoker almost 14 minutes of their life, according to new calculations. A new website has worked out how much time a smoker, alcoholic or a drug addict will lose, each t

发表于:2019-02-20 / 阅读(230) / 评论(0) 分类 英语新闻

What is a fair wage? Why aren't more people in the world offered pay equality? These are some of the questions the United Nations International Labour Organisation (ILO) has recently investigated. With a global population of over seven billion, is it

发表于:2019-02-21 / 阅读(179) / 评论(0) 分类 英语听力精选进阶版

Let us pause for a moment and consider the structure of the atom as we know it now. Every atom is made from three kinds of elementary particles: protons, which have a positive electrical charge; electrons, which have a negative electrical charge; and

发表于:2019-02-25 / 阅读(275) / 评论(0) 分类 万物简史
学英语单词
-ean
AETVO2
ahhhhhhhhh
alogotrophy
an arm and a leg
anionites
astrologizing
atomic object model
atypical leukemia
baccatin
backup trunk
bail in error
block reference set
carbide method
carbon contact pick-up
caronnyl-monothio-acid
center-part
chartered vessel
china pencil
chromboridizing
cleansing mixture
combined condition
database description
degree of prestressing
discount on lease obligation
Distoma japonicum
double-motion raddle mixer
effective output of heat engine
effectss
Elliott wave theory
embossed printing
equal protection
external abdominal hernia
external electro-optical modulation
feoffee in trust
frequency offset transponder
gas-flame brazing
glass fibre covering machine
ground water elevation
IMPATT diode
interpersonal communication styles
Laetare Sunday
level-enable signal
linkup
Litec
lithamide
Lora, Pta.
low-temperature flexibility
lymphangio-cavernoma
maffickers
meliosma wallichii planch.
message map
milling groove
Mindel glaciation
minimum possible value
multiplying digital-to-analog converter
musca (byomya) ventrosa
new markets
notifying
orographic depression
partitioning off
pay duty under protest
performance computation
pre-collision
preservative injection
pseudomalignancy
pull in the chin
pure benzol
railbanking
re-expanded
residual righting lever
ring mold
run heavily into debt
secondary acid
showed off
single-set
singultuous
smoke stone
Squama Manis
SRBP
Syngabidae
tabulating
Talaings
teleprocessing network
tensomes
the downtown district
thers
thin aerofoil
thymidylyltransferase
to call at a port
total loading time
tube coil
Tudorized
tunger tube
type as
Třešt'
validify
variable capacity amplifier
vascular surgery
vector function generator
vertical-type resistance dynamometer
vetala