单词：methylated albumin kieselguhr chromatography
单词：methylated albumin kieselguhr chromatography 相关文章
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a
Scientific American(六)月
by Jason Marshall In the last article, we learned that there are several ways to calculate the average value of a sample of data. We focused on one such method, the arithmetic mean, and used it to calculate the average number of potato chips in a bag
数学英语
AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals
农业与发展
EDUCATION REPORT - July 4, 2002: Medical Residents This is the VOA Special English Education Report. To become a doctor in the United States, students usually attend four years of medical school after
教育与新闻
HEALTH REPORT -October 9, 2002: Lasker Awards for Medical Research By Nancy Steinbach This is the VOA Special English Health Report. The Albert Lasker Medical Research Awards were presented last month
健康与环境
By Craig Fitzpatrick Washington, DC 28 July 2006 watch Saving the Tigers report Tigers have long been a symbol of grace, power and majesty. Because of this their body parts are highly prized in Asian countries. A new study by environmentalists says
2006年VOA标准英语（七月）
By Andre de Nesnera Washington 23 April 2007 Former Russian President Boris Yeltsin has died in Moscow at the age of 76. In this report from Washington, Senior Correspondent Andr de Nesnera looks at the Russian leader's legacy. Russian President Bori
2007年VOA标准英语（四月）
By Gary Thomas Washington 21 February 2007 As another U.N. deadline on Iran's nuclear program passed, Tehran continued to send signals of both defiance and compromise. Meanwhile, the United States and its allies on the nuclear issue remain steadfast
2007年VOA标准英语（二月）
By Robert Berger Jerusalem 20 June 2008 Israel is reported to have carried out a large military exercise that could have been practice for an attack against Iran's nuclear facilities. Officials in Israel have refused to confirm or deny the report wh
VOA标准英语2008年（六月）
A: Why'd you pull me over? B: Are you aware that you drove through a red light? A: I ran a red light? B: Yes, you did. A: I apologize, but I didn't realize that I did that. B: Weren't you taught that yellow means slow down, not speed up? A: I did lea
英语情景对话-驾驶
A: What's wrong, officer? B: You do realize that you ran a red light, don't you? A: I did? B: You didn't see the red light? A: I'm sorry for running it, but I really didn't know. B: Didn't you learn that red means stop? A: I know that. B: Then tell m
英语情景对话-驾驶
A: Is there a problem, officer? B: I stopped you for driving through a red light. A: Did I really? B: You didn't know? A: I had no idea that I ran it. B: Don't you know that yellow means slow down? A: Yes, sir. B: Why'd you speed up instead? A: I rea
英语情景对话-驾驶
By Jim Teeple Jerusalem 13 June 2007 Shimon Peres has been elected Israel's ninth president in a second round of parliamentary voting for the largely ceremonial post. VOA's Jim Teeple reports from Jerusalem, Mr. Peres has held virtually all of Israel
2007年VOA标准英语（六月）
Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长
经济学人科技系列
By Robert Berger Jerusalem 04 November 2006 Family members mourn during the funeral procession of Mahmoud Sabah, a Hamas militant killed during an Israeli missile strike at the Jebaliya refugee camp At least eight Palestinian militants have been kil
2006年VOA标准英语（十一月)
By Al Pessin Pentagon 08 November 2006 President Bush announced Wednesday that Defense Secretary Donald Rumsfeld is leaving the administration. VOA Pentagon Correspondent Al Pessin reports on the man and his career. ------- Donald Rumsfeld Wednesday
2006年VOA标准英语（十一月)
By Jim Bertel Washington, DC 08 November 2006 watch US Midterm Elections Democratic supporters in the western city of Portland, Oregon, Tuesday, November 7, 2006 The opposition Democrats won control of the U.S. House of Representatives in Tuesday's
2006年VOA标准英语（十一月)
今天我们要学的词是designated driver。 Designated driver, 指定司机。在美国，一群朋友出去派对，往往会指定其中一个人为designated driver此人不能喝酒，保证玩完了以后开车送大家回家，可谓牺牲我
英语单词荟萃
By Peter Fedynsky Moscow 05 July 2007 The International Olympic Committee, or IOC, has awarded the 2014 Olympic Winter Games to the Russian resort town of Sochi. The choice sparked unbridled joy among Russians, who see the decision as confirmation of
2007年VOA标准英语（七月）
By Kurt Achin Kyoto 04 May 2007 Asia's economic development is a success story that has been decades in the making. But in the past decade, the region has become a key factor in a global imbalance marked by too much reliance on exports by countries i
2007年VOA标准英语（五月）