[网络] 准种

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(204) / 评论(0) 分类 数学英语

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(295) / 评论(0) 分类 Scientific American(十)月

By David Byrd Rio de Janeiro 13 July 2007 The 15th Pan American Games, a multi-sport Olympic style competition for the Western Hemisphere, open Friday in Rio de Janeiro, Brazil. As VOA's David Byrd reports, the games are part of Rio's plan to bid for

发表于:2019-02-04 / 阅读(198) / 评论(0) 分类 2007年VOA标准英语(七月)
学英语单词
AATM
acyl carrier protein (ACP)
anterior tubercle of thalamus
antisound
back pressure evaporator
bellylaugh
blaastolytic
blue merle
butty
Carl Gustav
channel decoder
characterpulse
coal supply
cog in the machine
continuous transmission
control of variance
coronal heating
cosmic-ray acceleration
cremation certificate
cross-terms
depression tank
Dermatophagoides
Dokken
dough maker
echocardiographically
edit string
emitter coupled trigger
fetticus
firebrick tile
fixed screw
flower show
frequency offset transponder
galumphed
games console
gasiform
gonogamete
heptapetalous
Hod.
housing depth
Hydrocon
hypsoisotherm
ideal (thermal) cycle efficiency
idolothism
imortal
indicator plant of soil
infrared generator
insurance proposals
Jersey cream
juvenile xanthogranuloma
Kawm
khassem
l'empire
licencing
lithide
Lomuro
London clearing banks
Lāna'i City
m. risorius
make memoranda of
measurement assurance
mechanical asphalt paver
multiple-skeg stern
non-investment property
nonautoimmune
nonovolytic
online market
orbit transfer engine
palaeanthropic
percent conversion
photo echo
plesioclythia schlingeri
pointingly
poly-ubiquitinated
put a pinch of salt on someone's tail
radioactive daughter products
rami parieto-occipitalis
regrets only
resin filling
resultant program instruction
sanda
schaluppe
sea bread
series name
shell work
shrinkest
silver rule
summary of spoiled work
tcks
tetrachromats
Tetrapanax tibetanus
throwing under the bus
tongued and grooved
tribasic
unit heater
vignoble
Vitacimin
wellbore
wether sheep
winding length
withholded
xenon fluoride excimer laser