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赣州俪人整形医院隆鼻多少钱健新闻寻乌县人民医院口腔美容中心

2019年09月24日 00:33:20    日报  参与评论()人

赣州脱毛手术一般多少钱赣州太阳穴填充要多少钱赣州俪人美容医院瘦腿针多少钱 But most significant of all, the jaguar has a tell-tale trademark. Instead of going for the neck or snout like most cats do, it kills with a crushing bite through the skull into the brain. This makes the jaguar prime suspect in this case. Even the glyptodonts defences had a fatal flaw. 但最重要的是,美洲虎有一个独特的特点,与大多数猫科动物不一样的是,美洲虎捕猎时不会直接撕咬猎物的颈部或者面部,它会在猎物的头骨上直接给予猎物大脑致命一击。这使美洲虎成为了这个头骨的“首要嫌疑凶手”。尽管雕齿兽的防卫有一个致命缺点。13,000 years ago, another very different kind of hunter reached this warm corner of the continent. Floridas springs have produced an unparalleled record of these first people, examples of their craftsmanship and hunting expertise, including razor-sharp flint spear points. 13000年前,另一批不同的猎人来到了这片大陆的角落。佛罗里达的泉水中记录了第一批人类无可比拟的技艺以及狩猎技巧,例如,带着锋利石头的箭头。The area was rich in flint for making weapons and in animals to hunt. And with the milder climate, these people probably had an easier life than their contemporaries further north. Small clues to their arrival have survived undamaged over 13,000 years—spear points, fishhooks and other glimpses of their daily life showing the versatility of these first inhabitants of the Sunshine State. 这片区域有着足够多的锋利岩石来制造武器,也有着足够多的猎物。当气温回暖后,这些人类的生活可能会比他们北方的同胞们更加舒适。13000年过后,还是能够发现他们来到过这里的痕迹——箭头,鱼钩。他们在这里生活的另一些痕迹表明,这些首批来到“阳光州”的人类技能多种多样。They hunted a wide range of ice age animals and Florida possesses a unique record of one such encounter. The skull of an extinct bison restored here was discovered in one of the rivers. Planted deep in the top of the skull was a flint spear point.这些人类捕杀过大多数的冰河时代动物,对此,佛罗里达拥有一个独特的据明这一事实。在这里保存着一只灭绝的北美野牛的头骨,它被发现于一条河流之中。在头骨的深处,有一个绑着锋利石头的箭头。英文文本来自普特英语,译文属未经许可不得转载.201307/250436Youve probably heard that climate change is bad news formany animal species like polar bears.你可能听说过,气候变化对很多诸如北极熊这样的物种都是不利的。Warmer temperatures mean less sea ice in the Arctic region.温度越高,北极区域的海上浮冰就会越少,And with less ice, theres less room there is for polar bears to hunt.进而就会使得北极熊的狩猎范围缩小。And so their populations shrink.最后就会导致北极熊的物种数量萎缩。But rising temperatures do not affect all animals in equally harmful ways.但温度升高并不会对所有动物产生同样的不利影响。For some animals, evenfor some bears, warming may be beneficial. Take, for example, the grizzly.对有些动物,甚至是一些熊类来说,全球变暖是有利的。就拿灰熊来举个例子吧。Like pretty much all animals, grizzly bears thrive when they have more food.灰熊几乎跟所有动物一样,只要有足够的食物,他们就可以繁衍生息。A ten year study thatfollowed 112 bears in the Rocky Mountains of Alberta, Canada, has found that warmertemperatures have resulted in grizzlies having easier access to food.在一项为期十年的研究中,研究人员对加拿大亚伯达省落基山脉的112只熊进行了观察,发现温度越高,灰熊就越容易找到食物。The more food they have, the fatter the bears get.食物越多,灰熊就能够储存更多的脂肪。And the more fat lady grizzlies store, the bettertheir chances of having healthy cubs.然而雌熊储存的脂肪越多,他们繁殖健康幼崽的几率也就越大。Cubs born during warmer than normal years were found togrow into larger and healthier adults.在温度较高的时候出生的熊仔一般要比正常温度下的熊仔长的更大,更加健康。Of course, this in no way negates the fact that climate change is a serious issue requiringimmediate and ongoing attention.当然,不可否认的是,气候变化仍然是一个严重且需要我们密切关注的问题。For every species that may benefit from global warming, manymore may suffer and possibly go extinct.对于每一个能从全球变暖获益的物种来说,这里仍然存在着更多物种可能会面临着灭绝的危险。But the study does show that warming does not necessarily spell total gloom and doom for allanimal species.但是研究确实表明,全球变暖对所有物种来说并不都是噩耗。Plus, the research may give scientists a clue about how to alter forest harvestdesigns to increase the grizzly population in the Canadian Rockies.此外,科学家们从这项研究中还知道了如何通过改变森林收获量来增加加拿大落基山脉的灰熊数量。At the moment, there are onlyaround 750 bears in Alberta, making them an endangered species.目前,亚伯达地区只有大概750只灰熊,它们已经被列入了濒危物种的名单之中。 /201405/296983江西省第三人民医院激光点痣多少钱

赣州妇幼保健院去痣多少钱赣州祛眼袋 瑞金市中医院祛除腋臭多少钱

瑞金市激光脱腋毛多少钱Veins are pretty important.血管相当的重要。After all, they carry blood fromvarious parts of the body to the heart.毕竟,它们从身体的各个部分向心脏运输血液。But for all their significance, veins are modest, too.虽然很重要,但血管也很谦逊。Yoursare probably content to work behind the scenes, tucked away beneath the skin.血管甘愿在幕后工作,在皮肤下默默运输血液。Sometimes, however, veins take center-stage and become visible as blue lines on the skin, oftenresembling an unmarked roadmap.然而,有时候血管成为主角,在皮肤上可以看到蓝色的线,很像未被标记的地图。If you havent guessed by now, were talking about varicoseveins.如果你还没有猜到,我们讨论的正是静脉曲张的血管。Have you ever wondered what are they are and how they form?你是否想知道它们是什么并怎样形成的?Basically, a varicose vein is one that is twisted and filled with backed-up blood.通常,静脉曲张的血管充满回流的血液并因此扭曲。Although they mostcommonly occur in the legs, varicose veins can also happen in the esophagus, testes and theurinary bladder.它们不仅多见于腿部,也会表现在食管、睾丸、膀胱上。Varicose veins in the legs occur when the valves in a vein near the surface of the skin malfunction.当皮肤表面下的血管的阀门不起作用时,腿上的静脉曲张开始显现。Valves usually keep blood from flowing backwards in the vein once its been pumped towards theheart.阀门的作用是防止有心脏送出的血液回流。When the valves dont work properly, blood gets stuck, causing the vein to swell and kink.当阀门不正常工作时,血液不能流动,导致血管膨胀和扭结。Although varicose veins are usually associated with senior citizens, not every older person hasthem.虽然静脉曲张多发生在老年人身上,但是不是每个老年人都患有这种病。Weak valves are often inherited, and can also be caused by wearing clothing that squeezesthe legs and veins too tightly.脆弱的阀门通常是遗传的,或者身上的衣把腿和血管勒的太紧导致的。Varicose veins may seem unsightly, but theyre not usually a cause for major concern.静脉曲张是很难看的,但是它们通常不会引起强烈的关注。Still, if youhave them and want to do something about it, talk to your doctor.然而,如果你有这种病并想要治疗,和你的医生聊聊。Treatments range fromwearing strong support stockings to surgery.治疗方法包括从穿修复性的长筒袜到做外科手术。 201403/279990 赣州市中医医院激光去黄褐斑多少钱信丰县人民医院减肥瘦身多少钱

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