椭圆型二次曲面

Teacher Uses Music to Make Math Fun, Cool Making math fun The voice heard in the video belongs to mathematics teacher Jake Scott. Most of the performers are his students. Watching videos is not part of their daily routine but it is one of the essenti

发表于:2018-12-08 / 阅读(59) / 评论(0) 分类 VOA标准英语2013年(一月)

MICHEL MARTIN, HOST: Mars is about to get a new visitor from Earth tomorrow. If all goes well, a NASA probe called InSight will land near the Martian equator. Its mission is to study the interior of the planet. But, before it can carry out its missio

发表于:2018-12-18 / 阅读(68) / 评论(0) 分类 2018年NPR美国国家公共电台11月

76 years after Pluto's discovery and after 17 years of research and development, Nasa's new Horizon Spacecraft sets out for Pluto. Travelling at around a million miles a day, it's on a 9-year, 700-million-dollar journey to reach Pluto and review its

发表于:2018-12-27 / 阅读(667) / 评论(0) 分类 探索与发现2015年

我们今天学的词是:planet。Planet是行星。不过你听说了吗,太阳系中排行第九的行星冥王星Pluto被降级了。Astronomers' reclassification strips ninth planet of status in solar system. 国际天文学会对行星重新定

发表于:2018-12-30 / 阅读(75) / 评论(0) 分类 英语每日一词

地道美语听力播客English as a Second Language Podcast (ESLPod),是一家位于美国加州洛杉矶的英语教育研究机构推出的英文听力会话,于2005年7月23日首播, 主播Dr. Jeff McQuillan为南加州大学的语言学博士

发表于:2019-01-01 / 阅读(80) / 评论(0) 分类 地道美语播客

The National Oceanic and Atmospheric Administration (NOAA) confirms that some of the oil escaping from that ruptured well in the Gulf of Mexico is staying beneath the surface, raising new environmental concerns about the disaster. BP says there is no

发表于:2019-01-30 / 阅读(78) / 评论(0) 分类 VOA标准英语2010年(六)月

Climate change negotiators from 173 countries have agreed on an agenda after days of bickering over the scope of talks left little time for substantive discussions. The disagreement highlighted deep divisions between developing and rich countries on

发表于:2019-01-30 / 阅读(89) / 评论(0) 分类 英语新闻

Marit Larsen 从那个红遍全球的少女组合M2M里走出来的Marit Larsen并没延续M2M的流行摇滚,而是选择了清澈的民谣曲风,用她时而俏皮时而的甜蜜的嗓音来吟唱她自己写的小曲儿,带给听者如沐春风的清新感觉。 中英歌词: It's such a funny sensation to be so happy that

发表于:2019-02-06 / 阅读(115) / 评论(0) 分类 音乐咖啡厅

LOS ANGELES, June 18 (Xinhua) -- Microsoft Corp. unveiled Monday a family of tablets dubbed Surface, built on Windows 8, at an event in Los Angeles. Microsoft Chief Executive Steve Ballmer introduced the company's Surface family of tablets. The devic

发表于:2019-02-17 / 阅读(88) / 评论(0) 分类 英语新闻

图片1 图片2

发表于:2019-02-19 / 阅读(111) / 评论(0) 分类 加州英语分级G6

图片1 图片2

发表于:2019-02-19 / 阅读(101) / 评论(0) 分类 加州英语分级G6

图片1 图片2

发表于:2019-02-19 / 阅读(94) / 评论(0) 分类 加州英语分级G6

图片1 图片2

发表于:2019-02-19 / 阅读(99) / 评论(0) 分类 加州英语分级G6

图片1 图片2

发表于:2019-02-19 / 阅读(87) / 评论(0) 分类 加州英语分级G6

图片1 图片2

发表于:2019-02-19 / 阅读(100) / 评论(0) 分类 加州英语分级G6

图片1 图片2

发表于:2019-02-19 / 阅读(98) / 评论(0) 分类 加州英语分级G6

图片1 图片2

发表于:2019-02-19 / 阅读(89) / 评论(0) 分类 加州英语分级G6

图片1 图片2 图片3 图片4 图片5

发表于:2019-02-19 / 阅读(104) / 评论(0) 分类 加州英语分级G6

图片1 图片2

发表于:2019-02-19 / 阅读(101) / 评论(0) 分类 加州英语分级G6

我们今天学的词是:planet。Planet是行星。不过你听说了吗,太阳系中排行第九的行星冥王星Pluto被降级了。Astronomers' reclassification strips ninth planet of status in solar system. 国际天文学会对行星重新定

发表于:2019-02-24 / 阅读(123) / 评论(0) 分类 学个词
学英语单词
accretionary structure
addressable horizonal position
adduct
adjustment credit
adonnino
Afrofuturistic
annisa
brices
bur weed fibre
buy the farm
cancelment
Carthaginian
chutney soca
cipher message text transfer set
clitorin
condescender
conversion loss
creep lattice
cucumber green mottle mosaic
daylight ratio
dzasokhov
echo characteristics
electric field strength
electropla
Emlyn
end of word character
eton collars
eupraxia
familyists
fielders' choices
games analysis system
Gianluca Vialli
girllessness
hairweaving
hairy cell
handshield
harmonic continuation
high cistern
in the dirt
inositol phosphate
kaolinic shale
laugh oneself into fits
limiting resolving angle
lithogenicbile
local group
madrassa
magneto optical
mesiobuccoocclusal angle
method of steepest descent
mix-in-place
mopane
news aggregator
nonuniformity
nuciferous
numena
off-center optic-axis figure
overyear regulation
oxyferrite
per say
persar
personal knowledge management
Pisionidae
Povoletto
prebaked
product attributes
pulse-code modulation links
pyruvate dehydrogenase
queer up
receptors
record-collector
republics of san marino
required freight rate
reticular magma
Rhodiola alterna
ribspares
robotrippin'
rotating disk extractor
rotatingswitch
safety stirrup
segmental osteotomy
shipped off
show to the door
source of water pollution
stepwise convergence
tabular cell
tagraggery
Taraxacum scariosum
theory Stiller's
tichina
tpc
trade documentation
tuna melts
uccs
undistempered
uniform syzygy method
vehicle area
veneer of mortar
vlok
water compressibility
wodanite
yourhealth
zero-energy fast reactor