单词:primary cellulose acetate
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By Jim Malone Washington 09 August 2007 Republicans in the state of South Carolina have announced they will hold their 2008 presidential primary in mid-January. That decision has set off a chain reaction among other states that could result in the fi
Don: Time to go again to the A Moment of Science mailbag. Yal: A listener writes: Dear A Moment of Science, Scientists know that one day we'll run out of oil and other natural sources of energy. Beyond solar power and wind power and ethanol, what are
Minnesota State Representative Ilhan Omar became a major partys candidate for the states 5th District in the United States Congress. Omar won the Democratic Partys primary election for the area on Tuesday. She is seeking to become the first refugee f
β-Amyrin β-香树脂醇 α-Amyrin acetate α-香树脂醇乙酸乙酯 β-Amyrin acetate β-香树脂醇乙酸乙酯 β-Amyrin palmitate 棕榈酰β-香树酯 Anabasine 毒藜碱 Anagyrine 臭豆碱,安
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. It sounds like something out of a bad science fiction novel. During World War II, a fungus called Tricoderma reesei ate its way through US military unifo
Scientists in Brazil are turning fruit fibers into car parts. At a recent meeting of the American Chemical Society, the researchers described their work in making the next generation of automotive parts made from natural fibers from bananas, pineappl
Turning Cigarette Butts to Batteries 烟头转变成电池 If you see a person carelessly throw a cigarette to the ground, what are you likely to think? That depends. If you hate people throwing things on the ground, you might think, That person shou
By Paula Wolfson White House 01 June 2008 Democrats in the United States cast their final ballots this week in primary elections for the party's presidential nomination. Senator Hillary Clinton has won a commanding victory in the Democratic presiden
By Mike O'Sullivan Los Angeles 21 May 2008 Hillary Clinton won the Kentucky primary election, Tuesday, by a margin of more than two to one, but Barack Obama won the race in Oregon and passed a milestone in the Democratic Party's presidential contest.
New Hampshire Prepares for Presidential Primary In less than a week, voters in the northeastern state of New Hampshire will cast ballots in the first U.S. presidential primary, following last Tuesday's Iowa caucuses. People going to the polls in New
By Jim Malone Washington 07 May 2008 Illinois Senator Barack Obama took a giant step toward securing the Democratic Party's presidential nomination Tuesday with a decisive win in the North Carolina primary and a close second place finish in Indiana.
Kerry Expected to Win Wisconsin Primary Greg Flakus Voters are going to the polls in the Midwestern state of Wisconsin in a primary contest that could represent the end of at least one candidacy for t
By Jim Malone Washington 27 November 2007 Campaign attacks are intensifying among the Democratic and Republican presidential contenders as the first test in the 2008 U.S. election season draws near in early January. VOA National Correspondent Jim Mal
The World Health Organization is urging governments to adopt primary health care and universal coverage as the best ways of improving health and saving lives. This year's World Health Report says primary health care can provide billions of people fa
By Greg Flakus Houston 11 March 2008 Voters in the southern state of Mississippi are going to the polls in that state's Democratic Party presidential primary. Opinion polls put Senator Barack Obama in first place, but, as VOA's Greg Flakus reports fr
阳光暖暖,白云朵朵 The Primary 5 - 2 am 中学生活总是单调乏味的。考试破坏了学习本该有的乐趣,禁闭也一时间变成了寻常事。漂亮的女孩子身边总围绕着那些穿kappa衣服的拉风少年。比较起来
Former Massachusetts Governor Mitt Romney took a major step Tuesday toward winning the Republican Partys presidential nomination with a convincing victory in the New Hampshire presidential primary. Romney easily defeated five Republican rivals one we
CANBERRA, Feb. 18 (Xinhua) -- Australian Labor Party's primary vote stands at just 30 percent, down 5 points since December, the latest Herald/Nielsen poll published in Fairfax newspapers showed on Monday. This is the first time that Tony Abbott is t
Polls Show Romney Leading Gingrich in Crucial Florida Primary Showdown The latest polls show Mitt Romney with a big lead in Florida, and the former Massachusetts governor is focusing his attacks on President Barack Obama. People are hurting out there
台湾籍旅美老师今天交给我们的句子是: It's not rocket science: Focus on lean protein, healthy fats and non-processed, unrefined carbohydrates such as vegetables, beans, whole grains and fruit. 这不难懂:多摄取低脂肉类、健