[网络] 硝基苯类化合物

分集介绍:导数,商数,正弦和余弦 Derivatives.of.products.quotients.sine.cosine

发表于:2019-01-05 / 阅读(392) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

分集介绍:导数,斜率,速度与变化率 Derivatives.slope.velocity.rate.of.change

发表于:2019-01-05 / 阅读(391) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(173) / 评论(0) 分类 Scientific American(八)月

[全屏观看] 点击右键- 另存为 可保存这个Flash影片 Silly Sausage是Nitrome于2011年5月28日发行的一款益智类游戏,它是以香肠在尽量不碰到其它损失生命物体的情况下吃光所有的钻石再到达终点为标

发表于:2019-01-08 / 阅读(243) / 评论(0) 分类 英语对接游戏

HEALTH REPORT - New Heart Drug Shows Promise in African Americans By Cynthia Kirk Broadcast: Wednesday, November 17, 2004 This is Bob Doughty with the VOA Special English Health Report. Heart failure

发表于:2019-01-30 / 阅读(175) / 评论(0) 分类 健康与经济

Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康

发表于:2019-02-07 / 阅读(172) / 评论(0) 分类 阅读空间

Today we go on a journey. It starts in Sweden over 100 years ago; and then moves to London; and finally moves to future worlds and other planets. But we start in Sweden. Alfred Nobel spent his life finding ways to blow things up. He was born in 1833

发表于:2019-02-19 / 阅读(139) / 评论(0) 分类 听播客学英语

本期内容: A humble houseplant with a dash of rabbit DNA could help lower our exposure to indoor air pollution, new research suggests. Scientists have revealed that by inserting a rabbit gene into devils ivy the plant is able to clean the surrou

发表于:2019-02-20 / 阅读(144) / 评论(0) 分类 夏说英语新闻晨读
学英语单词
a graveyard cough
airshifters
Algol olive r
amnion vertebrate
annual trend increment
apicosan
array selection circuit
asian-americans
assault rifles
astrospectrometer
atomic nucleus fission
Bad is the best.
barraging
bavadra
benzoylpyruvic acid
Berger mixture
cat milk
co-dehydrogenase
competition type athlete
Coney dog
continuity postulate
cranienepgalometer
csongrad megye
curved armed pulley
cyclical swings in demand
deobfuscating
detruncated
display interface unit
do sport
drain wire
enregistration
enwheeling
exhaust gas recycling system
expected value of mean square error
fertilizer placement
fighter escort wing
flexible plastic surgical depressor
fluoride pollution
fringeorder
function keys
Galapagos ridge
glass fertilizer
godship
grazing entrance
herbaceous dicotyledon
high resolution atomic absorption spectrometry
I am English
INAH-PAS(pasiniazide)
intracorporate transfer of funds
isolated words
labor market with a hierarchical mobility
log book
long wave pass filter
LV (latent heat of vaporization)
Maconga
manah
metabolism trial
Metrolink
microscope stage
military-surplus
mobile player
monack
monochromatic light beam
mother metal
motion and time study
neuks
new-sprung
nixie readout
no string
Nuon R.
nyamaa
octogynous
order relation
pargeting
pedal-bins
pooping sea
post-game
producers' cooperative
provide ... for
radical correction of tetralogy of Fallot
Radio-oncologist
radioactive iodine tests
rear-suspension
recirculating air
return of shorts
round die block
Schulen
securities-veluation line
set of condinate
side-curtains
solitary carpel
tensue
terminal binding post
test of effect of sudden power change
testosterone phenylacetate
twin-lead
two-tongued
unmotivate
versilia
wardairs
water supply hygiene
Weichselbaum's diplococcus