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重庆西南看效果怎么样百度优惠

2019年11月20日 23:32:47|来源:国际在线|编辑:最新晚报
Researcher Molly Cummings and her coworkers at the University of Texas at Austin placed afemale swordtail in a tank with two males visible at either end.来自德克萨斯大学奥斯汀分校的研究员莫莉卡明斯和她的同事们做了一个有趣的实验。他们将一条雌性剑尾鱼放入一个水槽中,并在其两侧分别放入一条雄性剑尾鱼。One of the males, however, wassurrounded by filtering glass that blocks UV light.但是,不同的是,他们把其中一条雄性剑尾鱼用滤光玻璃给围起来,而紫外线是无法穿透这种玻璃的。They found that the female was twice as likelyto demonstrate interest in the male whose UV flashers were visible to her.结果,他们发现,这条雌性剑尾鱼对那条紫外线可见的雄性剑尾鱼的兴趣是另一条的两倍。Twice as likely!Thats a big finding.两倍呀!这可是一个不小的发现! Put a Mexican tetra in the middle tank–thats a predator who snacks on swordtails–and youget a different result.之后,他们把会捕食剑尾鱼的墨西哥脂鲤取代雌鱼放入中间的水槽,结果截然不同。The tetra shows equal interest in getting at both swordtails.脂鲤对两条鱼表现出同等的兴趣。Like humans,tetras are unable to register UV light.因为它和人类一样,是无法用眼睛感知紫外线的。Interpretation?再解释一遍?Male swordtails have developed a subtle way of advertising sexual iness tofemales of their own species-while avoiding courting disaster.简单说来,就是雄性剑尾鱼已经找到了一种精细的方法,在吸引同类雌性的同时避免招致被吃的厄运。201503/365127Anyone with even a passing knowledge of world history knows about the horrors that came out of the Nazi attempt to exterminate the Jews of Europe.Some six million of Europes Jews – 63% of Europes Jewish population at the time – killed in the Holocaust.Barbara Stark-Nemons debut novel, Even in Darkness, is the true story of her great-aunt Klare Kohler and her experiences living through the Holocaust.Kohler was the only one of her siblings to remain in Germany after the fall of the Nazi regime.Stark-Nemon worked with deaf and language-disabled children for 30 years in Ann Arbor as a speech and language pathologist before deciding to write her first novel.She says that she first considered writing a biography or a memoir, but felt that neither of those would have had the desired effect.;Im a er and a fiction writer, and I love a novels ability to transport us,; she says. ;I wanted the er to be in the story. And for those reasons I decided to write it as a novel.;201506/382777

Thats where he live.I mean.Maybe he lives in Pasadena.那是他住的地方 我的意思是... 也许他住在帕萨迪纳Because he went that way.yeah.Thats Pasadena.因为他从这条路离开 对 那是帕萨迪纳he could be going...but thats Pasadena to me.他可能去...但那边对我来说是帕萨迪纳Thats the only way you can...You can only go to Pasadena when you turn right.当你右转的时候 你只能去帕萨迪纳Thats how I get there.Alright.well,yeah.Thats how everyone gets there.我是那样去的 每个人都是这么去的Oh God!I dont suggest doing that,people.大家 我不建议这样做No.Thats mortifying.But you did it.绝对不 太丢人了 但你这样做了I know.Im not a good example.我知道 我不是一个好例子So you can see why people get excited所以你可以知道为什么人们这么激动when they see celebrities and wanna do that.Uhhmm.Ok,so,all right,uh.当看到名人时想拍视频 嗯哼 好吧 呃Lets talk about the thing that happened this morning.Eh,oh,ok.让我们谈谈今天早上发生的事 呃 好吧 好吧Do you wanna talk about the thing happened this morning.你确定要谈今天早上发生的事吗?Yeah.But we have to take a break.When we come back.是 我们要休息一下 等我们回来We are gonna talk about the ;thing; that happened this morning.我们会谈论今天早上发生的事All right.All right?All righty.Thats your call.All right,we will be back.好的 好吗? 好 你说了算 好 我们马上回来 /201604/437062

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