单词:aluminum (tri)acetate
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[00:19.73]iPod Shuffle [00:29.90]Thanks to a sturdy, built-in clip, [00:32.64]iPod shuffle goes with anything. [00:36.26]Clip it to your sleeve, your lapel, [00:38.83]your coin pocket, your backpack. [00:42.03]No matter where you wear it, [00:44.12]i
This is the VOA Special English Development Report. Researchers say they have found a way to extend the storage life of a drug used to treat H.I.V. Their work could give infected mothers in the developing world a new way to prevent the spread of the
New Documentary Explores Aluminum's 'Dark Side' Aluminum is everywhere, including in products that make us feel better, safer and cleaner. Like antacids, sunscreen and antiperspirants. But Austrian filmmaker Bert Ehgartner says theres another side to
From NPR News in Washington, I'm Lakshmi Singh. CIA analysts are going through documents and other information taken from the raided compound in Pakistan where US special operations team killed Osama bin Laden. NPR's Rachel Martin says the data could
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TEST 3 Listen carefully to the conversations and short passages [00:07.99]and choose the best answer to each of the questions. [00:13.56]1.A)She is pitiful. B)She is too shy to apply. [00:33.41]C)They are afraid of her. D)She is intelligent. [00:41.2
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
I like to joke that I am who I am today because I did everything wrong in my 20's. I've always been fearless, and it often got me in trouble. I wasn't afraid to start a business, borrow a bunch of money, or quit a well-paying job to travel the world.
Several accords signed to boost relations between Turkey and Cameroon Ntaryike Devine, Jr. | Yaounde, Cameroon 17 March 2010 It was the first trip to Africa for the Turkish president, who arrived in Cameroon yesterday accompanied by 120 businessmen,
AUDIE CORNISH, HOST: The White House is postponing most of its steel and aluminum tariffs for at least another month. Tariffs were due to kick on - to kick in on a number of countries at midnight tonight. They're part of a broader effort to crack dow
DAVID GREENE, HOST: A lot of the aluminum and steel we use here in the United States is imported from other countries. And that, according to a report from the Commerce Department, is a threat to national security. Last week, department officials rec
The few surfaces not covered by signs are often clad in a distinctive, dark green-gray, striated aluminum siding. 这仅存的没有被商标遮盖的建筑,一般都被包裹在有特色的阴暗铝灰条纹的铝制外壁板之中。 Take-out san
A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A: Oh, yes. I like that one. But it's too heavy. B: Okay, try this one. It's made of aluminum. A: O
A: Can you help me find a pan? B: Are you looking for a small, medium, or large pan? A: I want a big pan. B: Does this one look big enough? A: Yes, it's the right size, but it weighs too much. B: Well, what do you think of the aluminum pan? A: It's l
In much of Asia, especially the so-called rice bowl cultures of China, Japan, Korea, and Vietnam, food is usually eaten with chopsticks. Chopsticks are two long, thin, usually tapered, pieces of wood. Bamboois the most common material, but they are a
U.S. retail sales fell half a percent in June providing more evidence that the U.S. economic recovery will slow down in the second half of the year. But the weaker than expected consumer spending appeared to have little impact on Wall Street as inves
GUANGZHOU, Nov. 23 (Xinhua) -- China and the United States agreed to boost cooperation on intellectual property rights (IPR) during annual trade talks which concluded on Monday. The two sides will increase exchanges and boost cooperation on fighting
Two exclusive red strap Apple Watch Sport models, specifically launched for the upcoming Chinese Lunar New Year, hit the shelves on Friday in the nation. 两款专为即将到来的中国农历新年打造的红色腕带苹果手表运动版特别款周
Apple made its case for consumers to buy its forthcoming smartwatch, positioning the device as a way to handle the brief interactions that fill our days, from meeting reminders to short messages to calling for a car. 苹果公司发布了新款智能手