单词:cyclomaltoheptaose
单词:cyclomaltoheptaose 相关文章
Malfatti, The Dumpling That Became A Napa Valley Legend play pause stop mute unmute max volume 00:0003:57repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin.
If you love animals, then you should put World Animal Day on your calendar or in your diary. It takes place each year on the 4th of October. It all started in Italy in 1931 at an ecology conference. The scientists wanted to highlight the plight of en
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Todd: What do you think about the zoo? Dianna: I like to go to the zoo. I like to give all the animals names, like Bert the Giraffe, but I wish the animals didn't have to be in the zoo, but I think it is good when zoos save animals, and help to make
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
ENVIRONMENT REPORT – May 24, 2002: Less Gas from Farm Animals By George Grow This is the VOA Special English Environment Report. Scientists in New Zealand have found a way to reduce methane gases re
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Hard-training athletes boost their performance with a variety of popular sports drinks. These drinks do work. But not in the way youd think. Thats acco
The itsy bitsy spider climed up the water spout. Down came the rain, and washed the spider out. Up came the sun, and dried up all the rain, And the itsy bitsy spider went up the spout again.
Malala Yousafzai, a Year After the Attack Malala Yousafzai遭受攻击一年之后 Welcome to American Mosaic from VOA Learning English. Im Avi Arditti. This week on our show, we have music from Lorde, Katy Perry and Miley Cyrus. We explain how a Som
By Douglas Bakshian Jolo, Philippines 21 February 2007 An island of about 300,000 people in the southern Philippines has been part of the front line in the war on terror. Jolo island just a few years ago was a launching pad for kidnappings and bombi
By Jim Teeple Ramallah 23 January 2006 Politicians in the Palestinian territories wrapped up final day of campaigning Monday, ahead of crucial vote Wednesday to elect new legislature Politicians in th
By Paul Sisco Washington 23 March 2007 U.S. scientists in the United States say they have moved a step closer toward success in the fight against malaria, by developing mosquitoes that are resistant to at least one form of the deadly illness. More o
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
A: Hello, could you tell me my test results? B: Your results are posted on the website. Just put in your password and you can see the exact numbers. A: Are you saying that all my results were normal? B: We always contact you by phone to come in if th
By Caroline Sawyer Nairobi 17 August 2007 A United Nations agency report says 600,000 people in southern Somalia, including people in and around the capital Mogadishu, are suffering from severe malnutrition and nearly 300,000 of those require immedia
与数字有关的英语词根总结 milli-【千分之一】例:milliampere(毫安)=milli(千)+ampere(安培) centi【百分之一】例:centimeter(厘米)=centi(百分之一)+meter(米) deci【十分之一】例:decibe
今天我们要学的词是normalcy。 Normalcy正常状态。美国著名流行歌星迈克尔.杰克逊突然去世后,The Jackson family is trying to give Michael's three children a sense of normalcy, 杰克逊的家人努力让迈克尔三个孩子
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