单词:isotopic depletion
单词:isotopic depletion 相关文章
[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:05.80]1998 Passage3 [00:08.62]Science has long had an uneasy relationship [00:11.94]with other aspects of culture. [00:14.56]Think of Gallileo's 17th-century trial for his rebelling belief [00
Section A [00:01.78]1. M: Excuse me,but I didn't hear clearly what you said. [00:07.92]Did you say that we did not have to hand in our exam papers? [00:11.83]W: No, I said that my teaching assistant would collect the papers while I'll grade them myse
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Britain 英国 Fish Wars: Have your fish cake and eat it 渔业之争:做鱼开吃 A silly spat about seafood shows the sort of compromises that Brexit will force 一场关于海产品的愚蠢争论暴露了英国脱欧面临的问题。 Britain's
Kansas Farmers Work to Prevent Depletion of Ogallala Aquifer 堪萨斯农场主努力保护蓄水层 COLBY, KANSAS The Ogallala Aquifer is a large underground water resource that sits below parts of seven U.S. states in the Midwest. The aquifer is us
In the last five years we've added 70 million tons of CO2 every 24 hours -- 25 million tons every day to the oceans. 在过去五年间,我们每二十四小时已经增加了了七千万吨的二氧化碳排放量,每天排放两千五百万吨的
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths crust is old. Billions of years old. So old that its nearly impossible to imagine. And now scientists have discovered what may be the oldest
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres definitely methane on Marsand there are seasonal variations of how much is being released into the thin Martian atmosphere. Which means that Mar
What does an 800-pound gorilla eat? If you said: anything it wants, youre not thinking like a scientist. A scientist would say, Let me analyze the isotopic composition of its excreta and Ill get back to you. Because a new study shows that the ratio o
Scientists Closer to Solving Plain of Jars Mystery A new group of human remains has been uncovered on the Plain of Jars in Laos. They are believed to date back to the Iron Age, some 2,500 years ago. The Plain of Jars is in the central Lao province of
PHNOM PENH, Nov. 18 (Xinhua) -- The 21st Association of Southeast Asian Nations (ASEAN) Summit opened in the Cambodian capital of Phnom Penh on Sunday with ASEAN Community building high on the agenda. Cambodian Prime Minister Hun Sen, the rotating ch
雅思写作过程中很多同学都面临词穷的窘境,常常一个very上下出现五次。殊不知这种词汇的重复使用也会令考官反感,影响最终分数。下面新东方网雅思频道特汇总雅思写作中常出现的各类词
There is nothing unusual about energy like coals and oils being consumed, principally because economic development depends on natural resources all the time. But what is happening today is extraordinary judged by the standards of the past. It is ener
Science and technology 科学技术 Climate and the solar cycle 气候与太阳周期 Chilling out in the winter sun 冬日下的冷噤 Stratospheric changes can lead to nasty cold snaps 平流层变化引起讨厌的严寒 THOSE unconvincedand those
Compston's machine allowed such rocks to be dated with unparalleled precision. 康普斯森的仪器能以无与伦比的精确度测定这些岩石的年代。 The prototype SHRIMP was built and machined in the Earth Science department's own worksho
GUANGZHOU, May 16 (Xinhua) -- A two-and-a half month fishing ban began at noon Wednesday in most parts of the South China Sea as part of ongoing efforts to rehabilitate the area's marine resources, according to fishery authorities. The Hainan provinc
Why do some governments persist in spending billionsof dollars on space exploration when starvation and poverty continue to gripmany countries throughout the world ? This particular question is being raisedby an ever increasing number of people 。 既
此题感谢lgc,是6月28日雅思写作大题目。关于能源危机的解决。此文思路清晰,结构除了建议部分稍显单薄,还是十分合理的,最关键的是本文的词汇功力,可以看出作者应该按照我上课的要
There is nothing unusual about energy like coals and oils being consumed, principally because economic development depends on natural resources all the time. But what is happening today is extraordinary judged by the standards of the past. It is ener