单词:isotopic ratio
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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
Language Points 1.Your coffee comes exactly as you like it, with the precisely right ratio of cream to sugar 2.You make all the stop lights when youre in a hurry 3.You come back from the bathroom at a restaurant and your delicious meal is already at
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
图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt
CDF Combined Distribution Frame 组合配线架 CDG CDMA(Code Division Multiple Access) Development Group CDMA(码分多址)开发小组 CD-I Compact Disk-Interactive 交互式光盘 CDMA Code
下面为大家整理了一些新GRE写作模板,主要包括了新GRE作文开头、中间和结尾的相应模板,同学们可适当进行运用,并从中获得一些GRE写作心得! 新GRE写作模板:开头 In this analysis, the arguer cl
主动式管理 Active Management Calmar 比率 Calmar Ratio Sharpe比率 Sharpe Ratio Sortino比率 Sortino Ratio 入息基金 Income Fund 子基金 Baby Funds/Underlying Funds 已调整风险回报 Risk-adjusted Return 互惠基金 Mutual Fund 公积
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
黄金一直是高品质、美丽和财富的象征。称某种东西为金质的意味着它具有很高的质量和价值。今天我们通过例子来学习一下和golden有关的习语英语词汇吧~ 1.the golden rule 金科玉律;指导原则
Indias sex ratio is getting worse. The trend can be reversed. 印度的性别比例扭曲越加严重,这个趋势能够逆转 THE news from Indias 2011 census is almost all heartening. Literacy is up; life expectancy is up;family size is stabilisi
BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up
The People's Bank of China says the economy is still facing downward pressure. Meanwhile, the global financial market has shown major fluctuations recently. Therefore, the central bank has concluded that it's necessary to apply flexible monetary poli
China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem
Rising property prices in China's major cities have scared off many young people and the situation is only becoming worse as rent in these cities is becoming unaffordable. 中国大城市房价的上涨已经吓跑了许多年轻人,而当这些城市
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
世界本没有长难句,修饰成分多了,便有了长难句。 阅读速度大部分来于短时间内理解长难句的能力。 大家在看长难句的时候,多思考,一个句子为什么这么长,常见的修饰成分到底有哪些?