序滤过器

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Its the time of year to take a look backand thats just what the journal Science did as they listed their most important breakthroughs of 2008. At the v

发表于:2018-12-02 / 阅读(179) / 评论(0) 分类 Scientific American(十二)月

图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh

发表于:2018-12-07 / 阅读(167) / 评论(0) 分类 数学英语

[ti:UNIT 7 Enjoy Your Hobby Lesson 56:Unit Review] [0:01.051]Unit 7 [0:02.631]Enjoy Your Hobby [0:04.894]Lesson 56: [0:06.943]Unit Review [0:08.907]I. [0:10.231]Building Your Vocabulary [0:12.963]A. [0:14.500]Fill in each blank with the proper word o

发表于:2018-12-10 / 阅读(177) / 评论(0) 分类 河北教育初中英语(初中起点)八年级上

But the HEPA filter for Olivers Vibe got dirty very quickly. And, it was not cleanableit was simply replaceable. When it turned filthy brown, Oliver went back to Target to buy a new filter. Oddly, Target sold the F15 belt for the Vibe, but not the fi

发表于:2018-12-11 / 阅读(163) / 评论(0) 分类 365个英语简短小故事

发表于:2018-12-12 / 阅读(118) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The human genome was sequenced, and in the process of moving that forward the technology that was developed was incredible. And because of their efforts in human genome,

发表于:2018-12-24 / 阅读(221) / 评论(0) 分类 Scientific American(十)月

Describing Order and Sequence Patrick: Okay, your first task is to put all of these files in order. Maya: Wow, there must be hundreds of files in this storeroom. How am I supposed to organize them? Patrick: Create a basic filing system. Put things in

发表于:2018-12-27 / 阅读(166) / 评论(0) 分类 2014年ESL之商务英语

图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t

发表于:2019-01-02 / 阅读(260) / 评论(0) 分类 数学英语

From VOA Learning English, this is the Health Lifestyle report. In parts of India, it is not uncommon to see people wearing a mask over their nose and mouth. The capital, New Delhi, has some of the world's dirtiest air. The pollution was a call for a

发表于:2019-01-03 / 阅读(154) / 评论(0) 分类 2018年VOA慢速英语(一)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(185) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? Robin Williams thought that the platypus was cobbled together by an inebriated deity: Lets take a beaver. Lets put on a ducks bill. Now we know how weird the platypus is

发表于:2019-01-08 / 阅读(179) / 评论(0) 分类 Scientific American(五)月

blame game negative campaigning 美国选民每四年不仅要选举一位总统,而且还要选举四百三十五名国会议员、至少三十三名参议员以及在州一级和基层的许多官员

发表于:2019-01-14 / 阅读(182) / 评论(0) 分类 美国习惯用语

英文歌词 Listen baby I wonder why sometimes we fall apart oh yeah Together we are so wonderfull yeah baby And every single day i pray, that really things shouldnt never be this way Im only trynna be a better man Why then do you see all the negative

发表于:2019-01-21 / 阅读(240) / 评论(0) 分类 音乐咖啡厅

negative number (does not exist) 负数 ● His fashion IQ is so low, it's a negative number. 他对时装的智商是那么低,可说是负数。(他对时装的鉴赏力根本不存在。) ●

发表于:2019-01-21 / 阅读(175) / 评论(0) 分类 英文名句短语

古埃及金字塔是奴隶制帝王的陵墓,最宏大的当为吉萨三座大金字塔。塔基呈方形,每边长230米,高146米,用230余万块巨石(每块平均重达2.5吨)垒成,国王墓室用一块400吨重的石板垒成。整体规

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

By Tabinda Naeem Washington, D.C. 21 May 2007 Two years ago, the National Academy of Engineering established the Grainger Challenge Prize for Sustainability. This $1 million award was designed to challenge the world's scientists to develop a practica

发表于:2019-02-03 / 阅读(199) / 评论(0) 分类 2007年VOA标准英语(五月)

BEIJING, Aug. 22 (Xinhuanet) -- Researchers have discovered how a human egg captures an incoming sperm for fertilization, paving the way to help couples suffering from infertility, according to media reports on Monday. An international team of resear

发表于:2019-02-08 / 阅读(191) / 评论(0) 分类 英语新闻

Listen to the schedule of a business trip. Fill in numbers l-8 to point out the sequence of the schedule. I'm leaving for Milan on the 7th of June. l'II arrive there on the 8th evening at about 7:OOpm. Then, l'II take a shuttle bus to the hotel. On t

发表于:2019-02-17 / 阅读(148) / 评论(0) 分类 英语听力练习题

Listen to the dialogues and write the correct sequence of l-6 as mentioned in the dialogues. A:How do I search books from the computer? B:First, key in your PIN number. Then, it goes to the Library's Homepage. Then, you can choose any way you want to

发表于:2019-02-17 / 阅读(130) / 评论(0) 分类 英语听力练习题

Thank you for being here,Fareed.Nice to have you on the show. 多谢你抽空前来 法里德 很高兴你能来上节目 Let's get started first with your background.I do think I know a lot about you. 首先聊聊你的背景 我觉得我很了解你

发表于:2019-02-23 / 阅读(174) / 评论(0) 分类 柯南脱口秀
学英语单词
a species of
absolve sb.from sin
acid base
aerodynamic tunnel
alkali bath
almond-shapeds
Alto Algere
Aneson
antenna tilt indicator
apex of dry dock
apron washer
Bavlinella
bbristlee
Bedanda
brake cross lever
Camacupa
camp bed
cervical insemination technique
charge hole
chewinks
CIOP
colo(u)rless
complement-fixing antigen
Compton-Raman theory of scattering
consented
corregimiento
Crognaleto
despumation
differentially-coherent detection
Douglas, (George) Norman
E. & Y.
eliding
Ethanesulfonate
Euler graph
expansionary action
failure rate sampling plan
family xylariaceaes
fi fa
flegalla
free-replacement
half shadow apparatus
heavy solids
homothety
hydrangea hortensia dc. var.hortensia maxim.
ilalas
imperviousnesses
intentional programming
intrusion prevention
jaheim
joist-and-plank
Kol'zhat
lunar observation
martime mobile service
mechanical excitability
millettia
molybdenum carbide
Morocho, R.
navigable speed
neofascist
nomospermous
non-profits
oath-takings
oil and gas extraction income
Orange County
order good
orleanists
outmodedness
panglot
parasitic torque
piezometric conductivity
pionteks
piss-elegant
plc
positive phase sequence relay
potassium permanganate test
printing operations
production language syntax
propagation of light
quasiminimality
register name
resected point
Rhizoma Polygoni Paleacei
rhodostoma
Rhone River
root of equation
rostral teeth
rumbling accentuated
savagerous
scale-up problems
scraugh
short circuit
siaresinolic acid
Solaskil
spiral(-wound) fission counter
stretched data
sub-clans
tigerman
tlatelolcoes
to shake hands
trichological
unwanted sound
vibro-rammer