un. 表面张力能

40 Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ni

发表于:2018-11-28 / 阅读(363) / 评论(0) 分类 新概念优美背诵短文50篇

Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. U

发表于:2018-12-15 / 阅读(256) / 评论(0) 分类 新东方背诵文选

Finding the Energy by Richard Seven 2005 The Seattle Times , Knight Ridder Newspapers. Distributed by Tribune Media Services Need some energy? To get it you have to spend it, and there’s the rub 1 W

发表于:2018-12-19 / 阅读(124) / 评论(0) 分类 彭蒙惠英语

This is Scientific American's 60-Second Science, I am Steve Mirsky, got a minute? You are pulling the tape off the roll and it starts to tear, or you are moving wallpaper and it refuses to strip off in strips or in what may be the most infuriating ca

发表于:2018-12-24 / 阅读(136) / 评论(0) 分类 Scientific American(三)月

(Woman) Today I want to talk about the Earth's last major climatic shift, at the end of the last ice age. But first, let's back up a moment and review what we know about climatic change in general. First, we defined climate as consistent patterns of

发表于:2018-12-30 / 阅读(168) / 评论(0) 分类 托福听力短文

Create Your Own Moon Craters! What makes science really fun is when you get to do things yourself, so today were going to be making moon craters. Theyre the roundish blast-marks left on the moons surface by ancient meteorites. The moons surface is co

发表于:2018-12-31 / 阅读(76) / 评论(0) 分类 英语听力文摘 English Digest

Even as adults we still enjoy blowing bubbles, dont we? If youve ever wondered why blowing on a thin film of soapy water creates bubbles, this is your lucky day. All liquids have a property called surface tension. Take water, for example. Water molec

发表于:2018-12-31 / 阅读(103) / 评论(0) 分类 英语听力文摘 English Digest

By Paul Sisco Washington 13 July 2007 NASA scientists have unveiled details of the space agency's plans to pierce the icy surface of Mars, near its north pole. The mission is designed to find evidence of water or life on the red planet. VOA's Paul S

发表于:2019-01-07 / 阅读(154) / 评论(0) 分类 2007年VOA标准英语(七月)

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete

发表于:2019-01-08 / 阅读(118) / 评论(0) 分类 英语小短文

Kenya Moves Full-Steam Ahead on Geothermal Production Kenya is expanding plans to become one of the worlds top geothermal power producers with the start of explorations at a site called Menengai. The government is also aiming to make geothermal Kenya

发表于:2019-01-13 / 阅读(143) / 评论(0) 分类 VOA标准英语2011年(十一月)

This is Xaero - a vertical take-off and landing vehicle being developed by Masten Space Systems. The California start-up hopes the rocket will eventually carry pay-loads for NASA to altitudes of up to 30 kilometres, mainly to collect atmospheric data

发表于:2019-02-03 / 阅读(98) / 评论(0) 分类 英语新闻视频

2006职称英语考试模全真拟试题理工类B级(二) 第一部分:词汇选择(第1-15题,每题1分,共15分) 下面共有15句子,每个句子均有一个词或短语划有底横

发表于:2019-02-07 / 阅读(124) / 评论(0) 分类 实用英语

如今,高端大气上档次已经成为众人耳熟能详的网络用语,凭借其无与伦比的受欢迎度,高端大气上档次一度位居十大网络用语的榜首。这句让无数互联网迷们捶足顿胸的潮流时尚用语,到底

发表于:2019-02-08 / 阅读(140) / 评论(0) 分类 英语口语

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete

发表于:2019-02-17 / 阅读(103) / 评论(0) 分类 双语有声阅读

SANYA, Hainan, Dec. 4 (Xinhua) -- The five BRICS nations intend to focus and work together on developing alternative energy sources. When Bu Xiaolin, vice governor of China's coal-rich Inner Mongolia autonomous region, spoke over the weekend in front

发表于:2019-02-17 / 阅读(144) / 评论(0) 分类 英语新闻

? Turning off your car's air conditioner - Yes, the AC does affect fuel efficiency. But Consumer Reports figures it amounts to only one mile per gallon, and edmunds.com says you could end up burning more if you open the windows and increase air resis

发表于:2019-02-17 / 阅读(142) / 评论(0) 分类 阅读空间

Energy Boy, I'm digging on your energy (Energy) and I'm digging what you telling me (Telling me) so I wrote this little melody 所以我写下了这首曲子 dedicated to my favorite lover 献给我最爱的人 Boy, I'm digging on your energy (Energy

发表于:2019-02-18 / 阅读(123) / 评论(0) 分类 好听的英文歌曲

如何在托福阅读中提取句子的主干?这样即抓住了阅读的重点,也节省了阅读时间。有些同学对于分析长难句并不是那么敏感,看到句子简化题可能就会有晕头转向的感觉,在这里给大家讲解一

发表于:2019-02-18 / 阅读(103) / 评论(0) 分类 托福英语

On our last program, we learned how water bugs manage to stand on the surface of a pond: The pads of their feet resist contact with the water just like wax paper does. This allows the bug to rest on the thin film of surface tension that naturally cov

发表于:2019-02-23 / 阅读(120) / 评论(0) 分类 英语时差8,16

16.The early railroads were........the existing arteries of transportation: roads,turnpikes, canals,and other waterways. A.those short lines connected B.short lines that connected C.connected by short lines D.short connecting lines 答对率:50% 答案

发表于:2019-03-12 / 阅读(188) / 评论(0) 分类 托福英语
学英语单词
accept a claim
acted up
air temperature sensor
analysis of spectrum
antagomistic group
anti-pumping device
backed by gold
Bacterium derby
baga nuur
barbell exercise
bee orchid
bihemispherically
boiler sludge conditioning agent
cab indicator
cavernoma
centre of gravity
character size control
chemical transmitter
civis romanus
compensated dynamo
cost-based pricing
creyste
cultural preservation
decomposition vibration
defective nutrition
demodulators
doubly-integrating accelerometer
DTX
Duresm
effective particle radius
ENQ
epeirogeny
exoticss
factor syntax
free swinger
Fumba
functionally distributed network
Griffith microcrack model
had it not been for
heavy-lidded
highbake
hsees
indites
initiation zone
issued shares
jan-feb
Japanese grosbeak
Leptodermis potaninii
loaded silo
low speed mill
mechanized application
microcomputer aligned words
minas de oro
minehunting
motion equation
MSMs
multilogic data store
museum attendant
muster list
null instruction
on a friendly footing
on the second floor
open-beach
overchoice
painting in fresco
phonon creation
Pieve di Teco
Pilsener
pipes in
Pisz
plug sleeve
polyasparagine
practical limit
propedeuse
rainbow flag
retained carcass
Salsola komarovii
scantier
sosland
standard reinforced fillet weld
state - of - the art
switchboard fuse
tda (tunnel diode muliplex)
tea trolleys
telemetry data network
theory of random processes
thickening device
time-dependent data
trading corporation
traditional wedding
tripple-error-correcting
USDP
Varangerhalvφya
viki
voltage endurance
war emergency grant
wexners
wigner-wilkins distribution
worminess
wrappt
yizz