强酸型阳离子交换树脂

This is Scientific American's 60 Second Science. I'm Steve Mirsky, got a minute? The Meridiana Planum region of Mars once had water that was really soft and highly acidic, conditions in incredibly hostile to any life forms that we know about. So any

发表于:2018-12-24 / 阅读(186) / 评论(0) 分类 Scientific American(二)月

43. I'd strongly recommend that... 我强烈建议 用法透视 又是一个表示建议的句型,但语气上要强得多。 支持范例 1. I'd strongly recommend that you (should) take the TOEFL test before you study in the U.S. 我强烈建议你去美国念书前应该先考托福。 2. I'd stro

发表于:2018-12-24 / 阅读(154) / 评论(0) 分类 英语句型学口语

Hungry Lasagna So you made lasagna last night, and it was delicious. You saved the leftovers by wrapping aluminum foil over the top of the pan, and putting it in the fridge. When you get hungry today, you go to look for that lasagna, but it looks lik

发表于:2018-12-31 / 阅读(134) / 评论(0) 分类 英语听力文摘 English Digest

Fish raised in the more acidic seawater that would result from higher carbon dioxide levels forget to flee predators. More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the grow

发表于:2019-01-02 / 阅读(120) / 评论(0) 分类 60秒科学

More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the growth of corals. And it turns out acidic seawater also makes clownfish and damselfish suicidally bold and reckless, accor

发表于:2019-01-08 / 阅读(143) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in

发表于:2019-01-08 / 阅读(211) / 评论(0) 分类 Scientific American(四)月

This is Scientific American 60 second Science, I am Sophie Bushwick, got a minute~ Theyre called hydogels: Jell-O-like materials made of networks of long-chain molecules in water. And theyre as flexible as living tissue. But hydrogels could not recov

发表于:2019-01-08 / 阅读(198) / 评论(0) 分类 Scientific American(三)月

[00:02.58]Pronunciation [00:03.94]Exercise 4 Listen to three sentences. [00:08.37]Choose the correct meaning,a, b or c, [00:12.26]according to the way each sentence is stressed. [00:15.50]1 The man at the back in the blue jacket. [00:20.25]2 There's

发表于:2019-01-10 / 阅读(352) / 评论(0) 分类 北师大版高中英语模块7(选修)

Blizzard 暴风雪 In summer, we experience hurricanes. 夏天会刮飓风。 When a hurricane comes, winds blow strongly and it rains a lot. 飓风来临时,会伴有强风和大雨。 So, what happens if we have a hurricane in winter? 那么,冬天

发表于:2019-01-10 / 阅读(251) / 评论(0) 分类 与美国小学生一起学英文第7册

Education Report - American Documents the Countrys First Exchange Students from China This the VOA Special English Education Report. Many thousands of Chinese are studying at schools in the United States. And writer Liel Leibovitz says the students a

发表于:2019-01-12 / 阅读(186) / 评论(0) 分类 2012年VOA慢速英语(九)月

如果你爱喝葡萄酒或经常遇到要喝葡萄酒的场合,学几句高大上的品酒英语尤其重要。 品葡萄酒本节课的重点词汇: 1) wine tasting 葡萄酒品酒会2) tasting flight 品酒序列3) Cabernet Sauvignon 赤霞珠4)

发表于:2019-01-22 / 阅读(149) / 评论(0) 分类 美国文化脱口秀

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(156) / 评论(0) 分类 自然百科2009年

But after all, Lenina was protesting, it's only about four months now since I've been having Henry. 可是毕竟,列宁娜在抗议,我跟亨利一起才四个月左右。 Only four months! I like that. And what's more, Fanny went on, pointing an

发表于:2019-01-29 / 阅读(106) / 评论(0) 分类 美丽新世界

Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y

发表于:2019-01-30 / 阅读(257) / 评论(0) 分类 60秒科学

You Dont Miss Your Water 歌手:Craig David 专辑:Slicker Than Your Average Craig David As I sail with you across the finest oceans On a way to find the key to our emotions Together we will move the clouds to brighter days Some people question w

发表于:2019-02-03 / 阅读(132) / 评论(0) 分类 好听的英文歌曲

WASHINGTON, Feb. 24 (Xinhua) -- U.S. Federal Reserve Chair Janet Yellen on Tuesday strongly criticized a proposed legislation known as Audit the Fed which is aimed to expand Congress' oversight of the central bank's monetary policy. I want to be comp

发表于:2019-02-06 / 阅读(174) / 评论(0) 分类 英语新闻

COLOMBO, Feb. 24 ((Xinhua) -- The United States on Sunday strongly condemned the attacks on Maldivian media personnel after three journalists were attacked in capital Male on Friday, officials said. The U.S. Embassy in Colombo, in a statement said th

发表于:2019-02-08 / 阅读(226) / 评论(0) 分类 英语新闻

欧盟承诺加强核安全 BRUSSELS, March 25 (Xinhua) -- European Commission President Jose Manuel Barroso said on Tuesday that the European Union (EU) remains strongly committed to reinforcing nuclear safety and security. Barroso made the remarks

发表于:2019-02-22 / 阅读(161) / 评论(0) 分类 英语新闻

Don comes up with another entrepreneurial venture, but Yael straightens him out just in time. [Thunder] Y: What are you doing outside, Don? It's about to rain. D: I'm setting up bottles. Y: I can see that. But why? D: For my new business venture: bot

发表于:2019-03-06 / 阅读(229) / 评论(0) 分类 英语时差8,16

Acid Water Yal: What are you doing outside, Don? It's about to rain. Don: I'm setting out bottles. Y: I can see that. But why? D: For my new business venture. Bottled rainwater! Y: As in living plastic bottles out in the rain and then selling them as

发表于:2019-03-09 / 阅读(357) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
airworthiness regulation
Amesville
angioprotectin
barrier reefs
betanaphthyl amine
binding thread
blown sheet
bog rhubarbs
Bogartian
bronowski
Burladingen
burstwick
Cachoeirinha, R.da
campylibacter
cast-in
cell refernce
chichipes
communizations
conglobation
coolant radioactivity
Dapingian
dicloran(BSI)
dispositive matters
dust flue
economic revolution
edwin hubbles
energy-based index
entepicondyle
erster
failcascaded
farjeons
full weld
genus Alauda
grottowork
heart-breaking
Herb Simon
heterotactic polymer
high performance airscrew
Hooker's onion
hydraulic friction brake
imaging beam
infinitesimal rotation
interpolative coding
ioxynil octanoate
junker mold
keratosulfates
Kidder ingrain carpet
Lampass
large-tonnage
laser line-scanning sensor
launching crew training rocket
lilling
liquid reserve
liung
loven
magentic acupress stylus
maragou
maximum working space
mesolecithal
Miletto, Mte.
miscorrelate
moscow' schottmilleri
newsround
next record
Noise power density.
non-mathematical relation
O-ethyl thiocarbamate
octubre
oncogeography
oneal
optimizing control
otopuncture
pass by reference
performance profile
petty expense
piss-hole
plastic impact
porous cup
proximal interlocking
real man
redness in inflammation
regularity of outbreak
risk-adjusted asset
Schwarze Elster
selective trigger
send things flying
shambas
Shoveltown
side dish
signs off
silicium
spinaliss
square rebate plane
standard logging
start-stop teleprinter
steam test
steelgray
store loop driver
study method
the first half
undescanted
zimmerman