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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(330) / 评论(0) 分类 新概念优美背诵短文50篇

Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.

发表于:2018-12-07 / 阅读(110) / 评论(0) 分类 火星生命

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(240) / 评论(0) 分类 新东方背诵文选

A: I need to open an account. B: Do you know what kind you want to open? A: I want a checking account. B: Do you know what the minimum balance is? A: What is that? B: You need to keep it at $100. A: Thats it? B: Thats the least amount you can have. A

发表于:2018-12-16 / 阅读(183) / 评论(0) 分类 英语情景对话-银行

A: I would like to open an account today. B: What kind? A: I want to open a checking account. B: You need to keep a minimum balance. A: How much is it? B: You need at least $100 in your account. A: Is that all? B: Yes. Thats the minimum. A: What happ

发表于:2018-12-16 / 阅读(166) / 评论(0) 分类 英语情景对话-银行

When you spill a liquid on the ground, it splashes. But if youre a guy using a urinal, or, more important, if the liquid is dangerous, say, an infected blood sample, you want to limit splashing. In other words: If an accident happens, you want the dr

发表于:2018-12-24 / 阅读(91) / 评论(0) 分类 2016年Scientific American(十二)月

Under Pressure压力之下 In physics, pressure depends on the amount of force acting on a surface and on the size of the surface. The smaller the surface, the greater the pressure. Lets say that a woman steps on your toe; she weighs 120 pounds. If s

发表于:2018-12-28 / 阅读(120) / 评论(0) 分类 初学者听力文摘精选

High Inflation Fairs, carnivals, festivals or anywhere you can buy helium-filled balloons, youre sure to see at least one balloon rising into the sky after someone accidentally lets it go off. What happens to the balloon after it rises out of sight?

发表于:2018-12-31 / 阅读(81) / 评论(0) 分类 英语听力文摘 English Digest

Why do golf balls have dimples(酒窝, 涟漪)?So that they look cute? NO! Because the dimples maximize the distance golf balls travel. Dimpled balls travel up to four times farther than smooth-surfac

发表于:2019-01-07 / 阅读(182) / 评论(0) 分类 奥运英语

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:2019-01-08 / 阅读(97) / 评论(0) 分类 英语小短文

In contrast, Jupiter and Saturn are all atmosphere. Unlike Earth, Jupiter doesnt really have a solid surface that you could stand on and then have your head up in the atmosphere looking at the clouds. Its just a giant, giant gas ball. Only one other

发表于:2019-01-23 / 阅读(86) / 评论(0) 分类 探索与发现2014年

Our chemistry, our very nature, our metabolism is completely shaped by the atmosphere. To appreciate our atmosphere, well rise through its layers, travelling from the planets surface, miles up above mountains and the clouds, to the very edge of space

发表于:2019-01-23 / 阅读(83) / 评论(0) 分类 探索与发现2014年

Well then, when you dive under the waves, Ned, for every thirty-two feet of water above you, your body is tolerating the pressure of one more atmosphere, in other words, one more kilogram per each square centimeter on your body's surface. 尼德兰,好

发表于:2019-01-28 / 阅读(80) / 评论(0) 分类 《海底两万里》中英双语有声读物

1. I know that every job has its own kind of pressure. 我知道每份工作都有自己的压力。 还能这样说: For me, it is job that has some kind of pressure on any person. I believe that pressure is evitable for people who have a job. 应用

发表于:2019-02-15 / 阅读(84) / 评论(0) 分类 情景会话口袋书人际篇

Congratulations, you've arrived on the hottest surface in the solar system. Here, the official temperature is eight hundred seventy degrees Fahrenheit. Day or night, equator or pole, the searing heat never varies more than a few degrees, and thats wh

发表于:2019-02-15 / 阅读(166) / 评论(0) 分类 自然百科2012年

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(87) / 评论(0) 分类 双语有声阅读

Voice 1 Hello, Im Ruby Jones. Voice 2 And Im Rachel Hobson. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 We arrived at the c

发表于:2019-02-21 / 阅读(136) / 评论(0) 分类 环球英语 Spotlight

As altitude increases, atmospheric pressure decreases. This is due to Earth's gravitational pull on the air molecules in the atmosphere. The closer to the Earth's surface the stronger the force exerted on these molecules. 随着高度上升,大气压

发表于:2019-02-22 / 阅读(97) / 评论(0) 分类 留美老师带你每日说英文

In the days of diving suitsthe sort that were connected to the surface by long hoses, 在使用潜水衣即用长管子连接水面的那种装备的年代, divers sometimes experienced a dreaded phenomenon known as the squeeze. 潜水员有时候会

发表于:2019-02-25 / 阅读(90) / 评论(0) 分类 万物简史

Maybe. A change in barometric readings may be part of the reason: Atmospheric pressure often drops right before bad weather sets in; this shift could cause body tissue to expand, which can lead to swelling and pain. 也许吧,气压变化有可能是

发表于:2019-03-06 / 阅读(202) / 评论(0) 分类 英语听力广播—Listening
学英语单词
a-dead
accounting elements
acridotheres tristiss
AEMA
air-mixer
alphabetical order
aminohippurate
announce amnesty
anomalous threshold
anti-Witnesses
application piston graduating spring
associated state
aswads
auto model
bhimavaram (bheemavaram)
boiler control box
building damage statistics
burst-key delay control
cassolette
centesimal balance
chased thread
clear headded
combustion chamber hopper
converted wave
corner the market
critical theory
cyclamen purpurascenss
deformed nuclear
diversifications
dunsires
fleale
fluidized bed boiler
focusing electrophoresis
foramina of Monro
gadgeteers
general ledger
glied
gravity abutment of arch dam
growing enterprise market
Heterotidae
highest high water level
horizontal mixing
index of pollution
injector stage
interlaced code
j (a) form
Juncosa
Keogh plan
literacy campaign
locustarian
Lyshchytsy
macoutes
makuharis
media trial
method of quadrature
misusing
modidryl
moo-shu
news fasting
nickelous carbonate
noise of forecd air cooling
nth harmonic
odorlessness
oesophagostomum columbianum
one layer
onefourth
Opposition Party
order comment
penetrative sex
peter-man
petrofinas
pipuls
planting-line
poultry epidemiology
practicing
protostar
pseudohypertrophies
pseudopomyzids
Q. O. R.
Qibo
R-band
ragdale
rate limit
rear-
receiving slip
redox polymerization
ribbon slitter
run out of memory
Sannai
Saxifraga daochengensis
scattering plane
seismic absorption band
SETPI
silicone insulation
single biased relay
tazle
thermoelectric equivelant
toll communication network
tryblionella littoralis
tubularis
villous vertigo
VME bus