单词:cyclotetramerization
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[00:03.99]Western Civilization Faces a Stark Choice Ⅱ [00:07.93]Economic Growth [00:11.42]The west's stunning economic advance [00:14.02]over the past 1000 years, and especially the last 200 years, [00:18.76]has made mankind an ecological success a
[00:02.33]Western Civilization Faces a Stark Choice Ⅰ [00:10.63]In 1900, most westerners were confident and optimistic, [00:16.18]full of pride about their civilization. [00:18.48]Since then, the west has made enormous strides in economic, [00:22.8
Prenuptial agreements, which are widely accepted in western countries, are still rarely paid attention to in China. But since the recent interpretation of the Chinese Marriage Law triggered widespread debate within Chinese society, prenuptial agreeme
EDUCATION REPORT – May 9, 2002: Privatization of Public Schools By Jerilyn Watson This is the VOA Special English Education Report. Last month, a state committee voted to give control of forty-two p
This is the VOA Special English Agriculture Report. Recycling programs usually give new life to materials like paper, metal, plastic and glass. But a program in the eastern United States is recycling shellfish to help the Chesapeake Bay. Oysters are
This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang
by Michael W. Flynn First, a disclaimer: Although Legal Lad is an attorney, the legal information in this podcast is not intended to be a substitute for seeking personalized legal advice from an attorney licensed to practice in your jurisdiction. Leg
Cloze: Stingers of the Sea 海中刺客 ── 水母 Given impressive-sounding names like Portuguese man-of-war, jellyfish are certainly respected and feared by humans. Not exactly a fish, and lacking a spine, this creature has a single body cavity
T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗
IN THE NEWS – March 23, 2002: INS Re-Organization By Caty Weaver This is Steve Ember with the VOA Special English program, IN THE NEWS. President Bush is considering ways to re-organize the agency t
By Gary Thomas Washington 27 April 2007 Saudi Arabia announced Friday the roundup of 172 suspected terrorists for plots to attack Saudi installations. Those arrested are believed to be local members of al-Qaida. In this background report, VOA corresp
By Zulima Palacio Carroll County, Maryland 22 September 2009 The bog turtle In Maryland, environmental officials are working to save one of the smallest and rarest turtles in North America. The bog turtle had the power to move an entire highway proj
Oum Sok began working as a cyclo driver when he was 18. He says the city has become very expensive over the years, making it much harder to earn a living. New York has its yellow cab. London has its red bus. But Phnom Penh has its cyclo - a three-whe
The State Department said Thursday an agreement for the start of direct peace talks between Israel and the Palestinians is close to completion. The deal will apparently be sealed by statements from the United States and the International Middle East
Greeks March Against More Budget Cuts, Privatization Angry Greeks are taking to the streets, demanding the government back off plans to save the economy by privatizing their government jobs. Anger and frustration boiled over into the streets of Athen
The military is now in charge in Egypt after the so-called Supreme Council of the Egyptian Armed Forces took power Friday, ending the three-decade rule of President Hosni Mubarak. Analysts say it remains to be seen whether the military leaders will c
Chinese leaders underline rural vitalization, high-quality development Chinese President Xi Jinping highlighted the importance of development in rural areas of the country while speaking with national legislators from Shandong Province in a panel dis
( 00:04:10---00:07: 51)DOUG JOHNSON: This week's listener question comes from China. Vera Tang wants to know what college students do during their summer vacation. There is no quick answer to this question. Students spend their summers in many differ
10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur