单词：cellulose acetate (ca)
单词：cellulose acetate (ca) 相关文章
The 1)Notorious Jumping Frog of Calaveras County By Mark Twain Read by Marsh McCandless In 2)compliance with the request of a friend of mine, who wrote me from the East, I called on good-natured, 3)ga
疯狂英语2004年
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
英语时差8，16
[00:00.00]Module 11 NELSON MANDELA [00:06.24]UNIT 1 I'm about to go to South Africa. [00:11.77]1 Listen and read. Then say. [00:16.29]Are you going somewhere, Dad? [00:18.53]Yes. I'm about to go to South Africa. [00:22.50]I have to do some work there
外研社新标准初中英语八年级
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
医务英语
Michelle Norris : From NPR News, this is All Things Considered. I'm Michelle Norris. Melissa Block : And I'm Melissa Block. Melissa Block : Government weather forecasters are calling for another busy hurricane season in the Atlantic. Here is what Co
2006年NPR美国国家公共电台
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
Scientific American(五)月
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
VOA标准英语2011年(四月)
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
2014年VOA慢速英语(九)月
The Boy on Graves-End Road by Caty Weaver Editor's Note: This is a weekly multimedia series of American short stories for English language learners. Each story has video, audio, quizzes, and a lesson plan for teachers. Hope you enjoy reading and list
2015年VOA慢速英语(十一)月
MADRID, March 20 (Xinhua) -- Spanish ACB basketball side Unicaja Malaga had sacked coach Chus Mateo as a result of his team's disastrous run of recent results, local media reported Tuesday. He left the club after little more than a year in charge, af
英语新闻
SAN FRANCISCO, April 25 (Xinhua) -- Oracle Corp. on Monday announced that its co-president Safra Catz is taking the additional position as the software giant's chief financial officer (CFO), following the resignation of its current CFO Jeff Epstein.
英语新闻
Barca lose Puyol in Benfica win MADRID, Oct. 2 (Xinhua) -- FC Barcelona paid a heavy price for their comfortable 2-0 away win over Benfica in Champions League as they lost captain Carles Puyol with a serious arm injury. Puyol fell badly in the second
英语新闻
RIO DE JANEIRO, Nov. 17 (Xinhua) -- One day after the team's 2-1 loss against America-MG, the Botafogo administration decided to fire head coach Caio Junior on Thursday. Losing five of its last six games, the vice-president of soccer at Botafogo Andr
英语新闻
Gabrielle: Hi, Annili! How are you today? Anili: Oh, I'm fine. Gabrielle: Good! Hey, I love your scarf! Anili: Oh, my scarf! Gabrielle: Yeah, where did you get it? Anili: Oh, I bought this scarf in Sydney. Gabrielle: Oh, OK. So, Sidney is your hometo
原版英语对话1000个
Early voters turn out to vote in Chicago CHICAGO, Nov. 3 (Xinhua) -- While most U.S. citizens will vote next Tuesday, some of the country's early voters are already out to cast their ballots. Ms. Megan Keskitaoo from Chicago turned out to vote on Sat
英语新闻
Todd: Hello! What's your name please? Anna: My names's Anna. Todd: Anna. OK, Anna and where are you from? Anna: I'm from a suburb of Chicago, Illinois. Todd: Oh, Chicago. Wow, what's Chicago like? Anna: It's very windy and flat, but there's a lot to
原版英语对话1000个
NAIROBI, Feb. 16 (Xinhua) -- Football Kenya Federation (FKF) jointly with the Ministry of Youth Affairs and Sports are in the process of submitting a bid to host the 2019 Africa Cup of Nations as well as the 2015 Africa Youth Championships. After the
英语新闻
Spain midfielder Cazorla defends Casillas over recent form MADRID, Oct. 10 (Xinhua) -- Spain midfielder, Santi Cazorla strongly defended the form of goalkeeper Iker Casillas on Wednesday as the Spanish national side prepared to fly to Minsk ahead of
英语新闻
JOHNNEBSURG, Dec. 30 (Xinhua) -- The committee preparing for hosting African Cup of Nations (AFCON) 2013 in South Africa on Sunday announced the country is ready to host the tournament. The Local Organizing Committee Chief Executive Officer Mvuzo Mbe
英语新闻
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
留美老师带你每日说英文