球面中心支枢

Text Can you prove that the earth is round? Go ahead and try! Will you rely on your senses or will you have to draw on the opinions of experts? WHY DO WE BELIEVE THAT THE EARTH IS ROUND? George Orwell Somewhere or other — I think it is in the prefa

发表于:2018-12-04 / 阅读(193) / 评论(0) 分类 大学英语精读第四册

Do you know so many of you will climb into your cars today perhaps to shuffle your children to soccer, to football, make their (refer to the cars) run to the grocery store. But do you also know what's

发表于:2018-12-11 / 阅读(114) / 评论(0) 分类 万花筒2006年

Kerry Says There is No Let Up in US Asia Pivot 克里:不会松懈亚洲再平衡战略 During last week's trip to Asia, U.S. Secretary of State John Kerry worked to reassure allies about the Obama administration's commitment to its so-called Asia

发表于:2018-12-16 / 阅读(90) / 评论(0) 分类 VOA标准英语2014年(三月)

北京奥运28大项 参与,竞争,分享,进步 Handball 手球 PLAYING TIME 比赛时间 英文原文 The normal playing time for all teams with players of age 16 and above is 2 halves of 30 minutes. The half-time break is normally 10 minutes. The ball is made of leat

发表于:2018-12-30 / 阅读(214) / 评论(0) 分类 奥运28大项比赛

Declassify US government documents and witness testimony from former or retired US military personnel confirm beyong any doubt the reality of ongoing UFO incursions at nuclear weapon sites. When I say UFO, the witnesses have described this craft as d

发表于:2019-01-08 / 阅读(131) / 评论(0) 分类 CNN2010年(十)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid

发表于:2019-01-08 / 阅读(112) / 评论(0) 分类 Scientific American(一)月

If youve ever had a garden or grown flowers in a window box, youve probably heard that you shouldnt water your plants at high noon because their leaves might scorch. Now a study in a journal called New Phytologist confirms that water droplets can foc

发表于:2019-01-08 / 阅读(142) / 评论(0) 分类 Scientific American(一)月

North Korea, 'Asia Pivot', Tops Kerry's Agenda On Asia, President Obama's second term starts where his first left off --boosting military, diplomatic, and commercial assets in the region as part of a so-called Asia Pivot. Ahead of his first trip to A

发表于:2019-01-14 / 阅读(75) / 评论(0) 分类 VOA标准英语2013年(四月)

You see the larger wing area here. 你们可以看到这儿有面积更大的翅膀。 Also, clearly, it was such a powerful thing,we wanted to try and bring other people but we couldn't figure out how to do it. 而且,这还是件很有影响力的事

发表于:2019-01-18 / 阅读(111) / 评论(0) 分类 TED演讲娱乐篇

Remember seesaws? Those things were great. But there was often a problem. Suppose theres a big kid on one side and a smaller kid on the other side. The seesaw just stays in one position: big kid on the ground, smaller kid up in the air. No fun. After

发表于:2019-01-26 / 阅读(77) / 评论(0) 分类 英语听力文摘 English Digest

生活大爆炸第一季第九集_3:The Cooper-Hofstadter Polarization Okay, I'm leaving for the conference. 好啦,我要去参加会议了。 -Sheldon:Have fun presenting my lucky hunch. 祝你报告我的小运气愉快。 -Leonard:Shel, I

发表于:2019-01-28 / 阅读(98) / 评论(0) 分类 生活大爆炸第一季

Shortened Obama Asia Trip Highlights Economic Goals, Strategic Pivot WHITE HOUSE President Barack Obama is scheduled to attend the Asia Pacific Economic Cooperation (APEC) Summit in Bali, Indonesia, and the East Asia summit in Brunei. But there are c

发表于:2019-01-31 / 阅读(106) / 评论(0) 分类 VOA常速英语2013年(十月)

每年,《时代周刊》都选出让世界更美好、更智能、更有趣的发明。今年的也能让你大吃一惊哦! 1.The Levitating Lightbulb 1.悬浮灯泡 Since he was a child, Simon Morris has been obsessed with making objects float

发表于:2019-02-01 / 阅读(138) / 评论(0) 分类 阅读空间

For one thing, if this was just the Ebbinghaus effect, 首先,如果真是艾宾浩斯效应, then we would expect the moon illusion to disappear for pilots flying high above the clouds 那么我们应该预期月球错觉对于空中的飞行员来

发表于:2019-02-13 / 阅读(88) / 评论(0) 分类 TED演讲教育篇

Science and technology 科学技术 Investigating the asteroids 小行星探测 Dawn's early light 黎明号初试锋芒 A mission to the asteroid belt will visit leftovers from the solar system's formation 小行星带探测任务将造访太阳系形

发表于:2019-02-16 / 阅读(102) / 评论(0) 分类 经济学人科技系列

Theres a simple way to figure out where the center of mass is. If the big kid is two times as heavy as the little kid, then their mutual center of mass will be two times closer to the big kid than to the little kid. Three times heavier and the center

发表于:2019-02-23 / 阅读(112) / 评论(0) 分类 英语时差8,16

Remember seesaws? Those things were great. But there was often a problem. Suppose theres a big kid on one side and a smaller kid on the other side. The seesaw just stays in one position: big kid on the ground, smaller kid up in the air. No fun. After

发表于:2019-02-23 / 阅读(105) / 评论(0) 分类 英语时差8,16

Remember seesaws? Those things were great. But there was often a problem. Suppose theres a big kid on one side and a smaller kid on the other side. The seesaw just stays in one position: big kid on the ground, smaller kid up in the air. No fun. After

发表于:2019-02-24 / 阅读(110) / 评论(0) 分类 英语听力文摘 English Digest

Some of the tallest trees in the world are under threat from poachers. Parts of the redwood forest park have been closed off after a 400-year old tree was cut down. More and bigger burls are being taken near former logging towns where the economy has

发表于:2019-03-04 / 阅读(132) / 评论(0) 分类 英语听力精选进阶版

Under this head I reckon a monster which, by the various names of Fin-Back, Tall-Spout, and Long-John, 在这个项目下,我不禁想起一种有着许多名称的巨兽来:脊鳍鲸,高喷鲸,长约翰鲸, has been seen almost in every sea and is c

发表于:2019-03-10 / 阅读(151) / 评论(0) 分类 白鲸记
学英语单词
Aaqerbate
address geo-coding
adjust account
againest
akinetic autism
allosteric effectors
anglicizer
anthranolyl
ASMR
auricula cordis
auricular appendages
Australian Options Market
Bacillus crassus aromaticus
biocoat
Bollmannia
bullescence
Canolo
capturing nucleus
case-based
chrome stain
chuckin'
collateral eligibility
coloboma lobuli
companhia
complete information
Corchoropsis
corresponsive
counseling service
cutter gauge
deer mushroom
dipolar site
disbributor disk
divagate from
durable-goods
egg sponge
epitheliocystis
evening shirt
exoticss
fender spar
flight jacket
foil-borne
foul-weathers
fuchsinophilia
full swivel
general operating instruments
Gossypimine
hooklike
Hortega cells
hydroxymethylglutaryl CoA cleavage enzyme
illegitimate recombination
jaimee
johans
Kobah
linearized
loyangs
maiden field
marital communications privileges
metal sheath material
natural conjugate prior
noncoded graphic
oil-slicked
Ovoshchi
paltauf
passive balance (of trade)
password cracker
Pintoyacu, R.
plural morpheme
poisson variation
polypod larva
post-election
post-tax operating profit
preset parameter
quackgrasses
quick setting additive
radioelectrophysiologram
respiratory valve
restricted movement
rjr-nabisco
shorrock
split-ring key
statutory acknowledgement
stepelle
synthetic industry
tapped out
thairs
thermal compound
thyrs-
tohian
Tolg
tongue bend test
transtime
tuberculin-tested
tutti frutti
velocity contrast
Victorianism
waliggo
wastewater from coal chemical industry
water injection equipment
wet flies
wooddall
woodstar
wrines