太阳科普 第8期

Now the speed of light is a very,very big number. 光速是个很大的数字 So if we just take a small amount of mass, 所以只要一点点质量 you get a huge amount of energy. 就含有大量能量 And that's the energy which actually powers ou

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英闻天下——532 Maduro Bans Opposition Rally

Venezuelan President-elect Nicolas Maduro is accusing the opposition of planning a coup against him following his narrow election victory. At least 7 people have been killed across the country during violent clashes at opposition protests. I can anno

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No one knows when Vesuvius may do the same thing again, but the people in Naples never seem to think of such a thing; 没有人知道维苏威火山会在哪一天再次制造这样的悲剧，但是那不勒斯人似乎从不考虑这件事， they

SSS 2008-07-10

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? After a bad day at the office, were more likely to flip on a nature channel than find a flower-filled meadow or sunny beach to lower our stress. But if you cant head

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第二节 性状 许多药品说明书的第一项是Description（性状），其原意是叙述、描写，在药品说明书及药典中一般都译为性状，其内容主要是介绍外观、理化性质、组成成分、结构、特征等。这一

委内瑞拉国民议会谴责暴力

CARACAS, April 16 (Xinhua) -- Venezuela's National Assembly on Tuesday condemned the violence that occurred in the last hours in the country, which so far has left seven people dead and 61 others injured. Announcing the decision, the Assembly's secon

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CARACAS, April 16 (Xinhua) -- Venezuelan president-elect Nicolas Maduro said Tuesday that his government has defeated an alleged coup staged by the right wing by creating violence, while opposition leader Henrique Capriles accused the government of p

VOA标准英语2012--Venezuelan President Hugo Chavez Wins Re-Election Bid

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VOA标准英语2013--Capriles Calls Off Protests in Venezuela to Avoid Violence

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英闻天下——391 Venezuela's Ruling, Opposition Camps Ready for Race

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生活大爆炸第三季第九集_3

好吧 Well... -那我该给克瑞普克下毒 -不 - I suppose I could poison Kripke. - No! 不 这其实很简单 No. It's a simple matter. 有那么几种有毒化学物 There are several toxic chemicals 尸检是查不出来的 that'd be untracea

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One of my favorite examples of liminal excellence comes from the late Dr. Claudia Alexander, 我最欣赏的一位具有交叉才能的榜样是已故的克劳迪娅亚历山大博士， a black woman plasma physicist, who passed away this past July

Lesson 44-1 Home Appliances 家用电器

Listen to the statements and check the correct answers. 1.Is sweeping out the tiny dust bothering you a lot? From now on if you have this machine, doing the housework will become a very easy job. This is a portable vacuum cleaner. lt's light and wire

Chinese health minister donates plasma

CHENGDU, May 5 (Xinhua) -- Chinese Health Minister Chen Zhu donated plasma on Saturday in Chengdu, capital of southwest China's Sichuan Province, and called on health workers to take the lead in blood donation to ease the country's blood supply short