单词:yttrotungstite
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Financial experts agree that part of the economic slowdown over the last few years can be attributed partly to the demise of the so-called dot-coms. Investors threw lots of cash at these start-up internet businesses, despite having no clear idea of h
The complex vocalizations of songbirds are learned, not inherited. Some even have regional accents. Wrens, thrushes and other songbirds don't hatch with their impressive musical talents. They learn to sing their extensive repertoires by listening to
President Bush says the key to a strong economy is the creation of more small business. But statistics show that most startups are doomed to fail. However, the experts agree that with planning and hard work a new company can beat the odds. This morni
By Kari Barber Dakar 30 June 2007 Ivory Cost rebel leader and new prime minister Guillaume Soro (Apr 2007) An Ivory Coast government minister has announced several arrests in connection with a rocket attack on an airplane carrying Prime Minister Guil
People in America - Ernest Hemingway, 1899-1961: One of the Most Famous Writers of the 20th Century 美国名人 - 海明威二十世纪最著名的作家之一 SHIRLEY GRIFFITH: I'm Shirley Griffith. DOUG JOHNSON: And I'm Doug Johnson with People in
In the 17th century, the French scientist Pierre Gassendi knew that light traveled faster than sound. When a gun fired far away, he could see the flash of gunshot long before he heard the report. Gassendi tried to measure the speed of sound by clocki
Colleen was in a hurry, which made her driving even more careless than usual. Her boyfriend Simon had already criticized her many times for failing to stop completely at stop signs. Thats what they call a California, or rolling, stop, he told her. If
Todd: So, Mark you said that you want to build a website. Mark: That's right. Yeah. So I noticed that you have a website, Todd. Todd: Yeah. Mark: Did you build that yourself? Todd: I did actually. I knew nothing when I first started and I learned and
The commander of U.S. and coalition forces in Eastern Afghanistan says his area has experienced a 40 percent increase in insurgent attacks on coalition and Afghan forces since January, compared to the same period last year. And, speaking via satelli
Nigerian Churches Ramp Up Security Against Attack Risk Near-daily violence in northern Nigeria is increasingly targeting churches. Bombings and other attacks have killed dozens of Christians in recent months. Armed policeman keep watch outside this A
Women on Front Line of Arab Spring Protests Many women have been among the protesters on the front lines of anti-government movements in the Middle East and North Africa. They helped to topple longtime leaders in Tunisia, Egypt and Libya. They played
Cloning Pets Is animal cloning for real? I want to have my cat cloned. Well, animal cloning technology exists, but pet cloning isnt quite there yet. And it may never be. Why not? I could think lots of people could want to have copies of their pets. T
AntIntrigue 蚂蚁的阴谋 Don: Hey,antslives are full of intrigue. Take slave-making ants. They invade other ants nests, kill some of the adults, and then steal the larvae and take them back to their own nests. The larvae learn who they belong to b
The Ant and the Dove An ant went to the bank of a river to quench its thirst, and being carried away by the rush of the stream, was on the point of drowning. A dove sitting on a tree overhanging the water plucked a leaf and let it fall into the strea
Todd: Shona, do you have any talents or interests like art or music or cooking? Shona: Yeah. Actually, I really, really enjoy art. I like to sort of study different artists and look at art from the past, but I also paint myself so I like to go to art
Ant Attack! Imagine this. Youre coming home to your gated community after a long day of work. As you stop to show the guard your ID, a mugger jumps out from behind a bush and grab s you by the mouth. Okay, that last part sounded a little weird, but t
The Lithic Principle 我们生活的星球上自然法则是亘古不变的吗?我们人类是不是自我感觉太过于良好? Time again for the mailbox.Let's see.Here:A Moment Of Science,I heard recently that if the laws of nature were change
The Denatured Egg White 煮鸡蛋还有那么多学问哪?在煮鸡蛋过程,鸡蛋会发生哪些变化呢? 蛋白质变性(protein denaturation)是指蛋白质在某些物理和化学因素作用下其特定的空间构象被改变,从而导致
Nice Set of Pipes 尽管管风琴对我们来说还是比较生疏的乐器,但它的发音原理与我国民间流传至今仍在使用的古老乐器芦笙十分近似。据史料记载,公元前250年前古希腊工程师克提西比奥(Ktes
A Pain in the Ear 耳痛是一种常见病,耳痛为常见症状,常因耳部疾病引起(原发性或耳源性耳痛),也可因耳部邻近器官或其他器官疾病所致(继发性或反射性耳痛)。耳痛的严重程度与病变的