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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

[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

The Fernald wilderness preserve today, 21 years after the nuclear weapons plant closed for good. The Fernald Preserve in Ohio is home to deer, turkeys, muskrat and many other creatures, including 200 species of birds. However, not too long ago, the s

发表于:2019-01-13 / 阅读(47) / 评论(0) 分类 VOA标准英语2010年(六)月

By Cynthia Kirk ENVIRONMENT REPORT -May 31, 2002: Coqui Frogs Invade Hawaii This is the VOA Special English ENVIRONMENT REPORT. Experts say the American state of Hawaii has been invaded by a small fro

发表于:2019-01-28 / 阅读(74) / 评论(0) 分类 健康与环境

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
addressable dynamic range
ammonium copper(ii) chloride
and parallelism
anisomycin
artipe eryx horiella
asiphonogamous plants
audiotracks
b'long
backing-off
balneum lacteum
battledoor
Beleno
bibbled
boltcutters
bunt of wheat
chocolate bomb
close-over hexagonal lattice
co-endure
code flag
coolant gas stream
creep characteristics
crus of clitoris
deficit electron
diode sputtering
direction on privacy and electronic communications
dredging works
edible snails
embertons
facio ut facias
facultative-obligatory reinsurance
false bedding plane
favoritisms
filter fly
fractured zone
fresh waterline
galactosemias
goshute
got the hook
Gramankondre
heat bonding
herb tobacco
high-blood
inspissatus
interrupt priority threshold
isotropic lines
kaufman adolescent and adult intelligence test (kait)
Knudsen layer
lap work
Melica transsilvanica
Merrell
minimized friction
modest capacity storage
moginson
munidopsis latimana
nemipterus personii
Noilhan
nurse-call
occipitobregmatic
of ability
p-n type junction
Pelox
permissible diameter
Philippsreut
pin-through-paste
pinus fragilissima
piss-artists
put in your two cents worth
Quinidate
r-f signal generator
ram pile hammer
receding contact angle
safety bank
scialaden
Shikag L.
silicon fluoride
sizing mill
soapy clay
soilpipe
speak for yourself
Spirochaeta stenogyrata
spos
stoale
strankas
tampering with jury
Tandil
teler
terpsichoreans
Thiothyron
topping lift winch
track jack
travelling jib crane
trihedral tool-maker's straight edge
troll(e)y conveyor
Uglegorskiy Rayon
unfilled corner
uridine-5'-diphosphate
Watson-Crick type DNA
Web Storage System
weight power ratio
wheelchairbounds
year-to-year variation