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淮阴区治疗不孕不育多少钱华龙生活

2018年09月24日 21:15:14|来源:国际在线|编辑:服务对话

Have you ever fantasized about going somewhere special?你有没有幻想过去什么特别的地方?Somewhere far from crowds, off the beaten track.远离人群,远离循规蹈矩。Somewhere out of this world?世界之外的某处?Is it time to catch a rocket to the Red Planet?是抓住一枚火箭到这颗红色星球的时候了?Mars is filled with mysteries, Volcanoes 75,000 feet tall, huge canyons, 3000 miles across and 6 miles deep, all kinds of interesting features.火星充满神秘、75000英尺高的火山,巨大的峡谷,直径3000英里,6英里深及各种有趣的地貌。Awaiting you is some of the greatest scenery in our Solar System,等待你的是太阳系中一些最伟大的景观。on a world where water once ruled, then vanished into thin air.在这样的一个世界,在那里水曾经一度统治,然后消失得无影无踪。Where lost microbe empires may still survive underground.在那里曾消失的微生物帝国也许仍然生存在地下。Weve seen the postcards, and we do wish we were there.我们已经看过明信片,并且我们也希望我们在那儿。Just the thought of being in this new world to see a landscape that no otherperson had seen before,只要一想到能在这个新世界看到一种其他人没有见过的景观,I think there are a lot of astronauts that would sign up to that.我想有很多宇航员都会报名。But dont be fooled. Nothing about going to Mars will be easy.但是不要被愚弄。去火星也不会是那么容易。Danger awaits you on this the desolate beauty, and perhaps Martians too.危险在这种美丽荒凉中等待着你,也许还有火星人。If we find on Mars evidence for a second independent origin of life,如果我们发现火星上的第二个生命起源的独立据,thats hugely profound, because it tells us right away that life is common in the Universe.那意义将会是非常深远,因为它告诉我们生命是普遍存在于宇宙中。Mars. Invaded by a robot and perhaps soon by an Earthling like you.火星。被机器人入侵,或许马上就轮到你的地球。Would I like o go to Mars?我还是想去火星吗?Oh, in a heart beat. Absolutely.哦,一种心跳声表达的意思是仍然绝对想去。If there was anyway for me to go to Mars I wouldnt be screwing around with robots, I wanna go myself.如果我去,我就不会抱怨火星和周围的机器人,我想我会自己去。There has never been a better time to boldly go where no human has gone before,人类过去从来没有更好的可以大胆的前往的机会,to follow in the footsteps of our robot pioneers and visit the planets of the Solar System.跟随我们的机器人先驱者,访问太阳系的这颗行星吧。注:听力文本来源于普特201204/176908

Males Rule in Costa Rican Wasp Species哥斯达黎加父系制度的黄蜂In most species of social insects, such as wasps, bees, and ants, the females rule. The females are the workers. They are the ones to go out and get the food, and they are also the ones to care for the queen, the larvae, and the nest in general. The males of these species of insects are typically lazy, and they bear the brunt of much abuse. They’re sometimes bitten, fed scraps, and chased out of the home for good by their sisters not long after they’re born.群居昆虫中大多奉行母系制度,比如黄蜂、蜜蜂、蚂蚁。群体里的工蜂是负责外出寻觅食物、照顾蜂王及幼虫并守卫蜂巢。而雄蜂通常都游手好闲,因此招来骂声一片。雄蜂有时候会被欺负,食不果腹,出生后不久被雌蜂赶出蜂巢觅食。Not only that, but among paper wasps in the ed States the females practice what scientists call “male stuffing.” When a worker brings food home to the nest, her sisters shove their brothers headfirst into empty nest cells to prevent them from consuming any of the food.科学家发现美国胡蜂群体里的雌蜂盛行的是“包夹雄蜂”。当工蜂运送食物回蜂巢,雌蜂就把雄蜂头挡在空蜂房里,不让雄蜂享受劳动果实。Behavior like this, however, is reversed in a Costa Rican wasp species. The males in this species not only attack their sisters, who curl into submissive positions or flee, but they steal food from the queen herself, their very own mother.但是,在哥斯达黎加黄蜂却恰好相反。雄蜂不但围攻雌蜂,还从蜂王那里偷食物,蜂王可是他们的亲生母亲啊!雌蜂只得缩成一团或逃跑。These wasps live in a cloud forest in Costa Rica. Whereas wasp colonies in temperatezones can only reproduce for a brief period in the summer, these colonies can mate year round. Thus, a scientist studying these wasps proposes that it’s in the females’ interest to put up with the abuse of their brothers and to let them hang around longer because it increases the males chances of mating with queens from other nests, which makes the colony more biologically fit.这类黄蜂居住在哥斯达黎加的雾林中。温带黄蜂只在夏天很短的一段时间繁衍后代,而这种黄蜂终年交配。研究这类黄蜂的科学家推断,雌蜂对雄蜂的放任自流是忍辱负重,为其它蜂巢的蜂王制造更多交配机会,顺应物种繁衍。 /201303/229875

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