科学美国人60秒 SSS Some Malaria Mosquitoes May Prefer Cows to Us

As you've probably experienced firsthand, some mosquito species have a real taste for warm, human blood. So much so that if you raise them on it the lab, they'll accept no substitute. Fortunately, I don't get major reactions at all. Brad Main is a mo

SSS 2012-01-24

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

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A: I was wondering if someone in your office could help me with a question I have about my payment. B: I would be happy to answer any questions you might have. A: My paycheck seems to be smaller than the one I received last week. B: What about income

失业英语对话-Reduced Payment(2)

A: I have a question about my payment and need someone to help me. B: Yes, I would be happy to answer a question about payment. What do you need help with? A: I cant figure out why my paycheck this week is smaller than last weeks. B: Did you generate

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A: Is there someone I can talk to about a payment question? B: Yes, we can handle that here. How can I help you? A: My paycheck that just arrived is less than last weeks check. B: Did you work at all during the last pay period? A: Yes, actually, I di

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A: Could you help me figure out why I am missing my unemployment check for this week? B: I hope that you remembered to send in your last Continued Claim Form. A: I am pretty sure that I didnt send that claim form in. B: You have to send that form in

英语大赢家 上册 076.Topic 4买单 Payment

Daniel: Here comes the other bowl. Waiter: It is seasoned with more salt, as you required. Daniel: Great! Oh, I can eat up all of them! Tom: No way. Daniel: How many rolls are there? Tom: Let me count, if there are less than twenty, we could have ano

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T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

VOA标准英语2008年-Russian General: Withdrawal from Georgia to Tak

Russia says all of its forces in Georgia will be withdrawn by late Friday into a 'buffer zone' around the separatist region of South Ossetia, where Georgian troops will no longer be allowed. Georgia, however, doubts Moscow's assurances, and says the

Italy lacks energy for economic revamp

ROME, Dec. 3 (Xinhua) -- Italy lacks the necessary energy(能量,活力) and strength for an economic revival while unemployment and poverty are on the rise, warned a report issued Friday. The 44th edition of the Censis think tank social survey, the

科学美国人60秒 SSS 2016-8-15

In Africa's battle against malaria, two low-tech tacticsinsecticides and bed netshave done a decent job killing off mosquitoes. But it's mainly one species that's been affected. That's a species called Anopheles gambiae, sometimes called the African

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2006年VOA标准英语-Lebanese Return Home to South As Cease-fire Tak

By Challiss McDonough Yatar, Lebanon 14 August 2006 After a month of fighting in Lebanon, a U.N.-mediated cease-fire has taken hold between Israel and Hezbollah militants. Thousands of people are streaming back to their homes, despite government war

音乐咖啡厅:Take my heart back

Take my heart back 歌手：Jennifer Love Hewitt It'll be alright 会雨过天晴的 You said,Tommorrow 你说过，明天 Don't you cry 别哭泣 Don't you shed a tear 别掉泪 When you wake up 等你醒来时 I will still be here 我依然在次 When you wake up 等你醒来时 We'

voa标准英语2008年-Political Fallout in Wake of Terror Attacks Tak

Top officials in the Indian state, Maharashtra, are becoming political causalities of last week's terror attack. The 60-hour assault on Mumbai, blamed on Islamic militants, killed an estimated 175 people, including at least 18 foreigners. From New D

VOA标准英语2009年-Former Iran Hostages Recall US Embassy Tak

By Jeffrey Young Washington 03 November 2009 US diplomats held captive by Iranian militants November 4 is the 30th anniversary of the siezure, by young Iranian militants, of the U.S. embassy in Tehran. Leading up to that event, the Ayatollah Ruholla

万物简史 第212期:把铅撵出去(1)

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

Typhoon Kai-Tak kills 3, displaces 100,000 in S China

NANNING, Aug. 20 (Xinhua) -- Typhoon Kai-Tak has left three people dead, one person missing and forced over 111,500 people to evacuate their homes in southwest China's Guangxi Zhuang autonomous region as of Monday afternoon, local civil affairs autho

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You might not think there would be that many people in the world prepared to devote lifetimes to the study of something so inescapably low key, 你或许会认为，世界上不会有多少人愿意花毕生的心血来研究那个不起眼儿的东西

Tropical storm Kai-Tak approaches south China

BEIJING, Aug. 14 (Xinhua) -- Kai-Tak, the 13th tropical storm of the year, is approaching China's southern regions, the country's meteorological authority forecast Tuesday. Kai-Tak, moving northwest at a speed of 15 to 20 km per hour, will graze or l