硝化糖类,硝基糖类

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(285) / 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(279) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

This is Scientific American's 60-Second Science. I'm Christie Nicholson . Got a minute? Altruism poses a problem for the theory of survival of the fittest. If we help others at a cost to ourselves, nice-guy behavior should die out, because we are giv

发表于:2019-01-08 / 阅读(60) / 评论(0) 分类 Scientific American(四)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(136) / 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(78) / 评论(0) 分类 健康与经济

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(62) / 评论(0) 分类 听播客学英语
学英语单词
A-scale sound level
adenosine-5'-(n-ethylcarboxamide)
air root
allottee
anasta
Ashermann
athm
Bakurtsikhe
Balance between supply and demand
basalanesthesia
bccc
blennorrhoeal
bolt seat
card-carrier
cardiac bronchus
centimetre
chete
Chinese hibiscus
chq. cheque
clinkery
cognise
cohesive bonding
compesce
computer based education
concernments
control interval level
corbel vault
crossover state
Cystoflagellata
danaus melanippus edmondii
deduct wage
dig a pit for someone
do someone the pleasure of
double eight
dual d flip-flop
dysfunctionals
electric melting
expansion stage
FHM (fuel handling machine)
forb meadow
fraternities
Friedmann, Alexander
FSME
game-point
gaylussacias
gotten a patent for
haider
hob relieving grinding machine
homoeophones
hull bottom
humanism
incompetent evidence
International Organization for Pure and Applied Biophysics
long-period wave
manufacturers' bark
matsuis
mazarini
mcgilligan
mentha rotundifolias
morbus britannicus
musculi glutaeus minimus
nocloprost
non operating items
novosti
open-cycle reactor system
order volvocaless
out of vogue
outgate
overpackaged
parametric polymorphisms
phasmalogen
physes
plaster sb with praise
position classification
power shovel
protection tests
put something forward
reduce someone to a pulp
reinitializations
reverse-directional element
rhizogonium badakense fleisch
ring werm
Roegneria melanthera
rolling machines
rudder band
scuttlesful
secondary spectrum priority
solid region
straightrun virgin
sueter
taper bracket
tarsophyma
three-address
Trustwave
unmelodramatic
unpersuasibleness
valve plunger
Vaughan Glacier
vertebratus
vision modulator
walk a Virginia fence