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如果我们的尾巴一直存在，我们的生活会发生什么变化
很多动物用尾巴来保持平衡。
如果有一天，你的父母年迈，走路不利索的时候，你会选择给父母或老人戴上一个“机器尾巴”吗？
这一奇葩的发明，又是出自日本，科学家们把机器尾巴命名为“Arque”，主要帮助那些患有关节炎或平衡问题的老年人，保持平衡，防止摔倒。
机器尾巴，原理模仿动物尾巴，可以在奔跑和攀爬时保持平衡。长1米，灰色且柔软，有人造肌肉，可以朝不同方向移动。
这样的发明发生在日本，一点也不奇怪，因为日本是个严重的老龄化国家，三分之一的日本人年龄超过60岁，日本成为地球上“最灰色”的国家，需要照顾的老人数目庞大。
科学家认为：机器尾巴不但可以让老人保持平衡，不摔倒，还可以帮助工人搬重物时候保持平衡，非常实用。
这一发明的面世，得到了两种非常极端的态度。
一方面，觉得机器尾巴确实能帮助老年人保持平衡，实用；一方面又觉得可笑，这不是让人类倒退“返祖”吗？
人类原本就有尾巴
的确，人类的祖先是有尾巴，直到有一天，人类开始直立行走后，发现尾巴没有太多价值，于是慢慢就退化。
时到今日，仍然有带着尾巴出生的孩子。
12岁的印度男孩巴腊吉，后脊椎上就有一条奇异的尾巴，被当地人奉为神猴哈努曼转世，受到人们的朝拜和追捧。
人类带着尾巴出生的案例极少，但不意味着不可能再出现返祖现象。
尾巴的基因一直存在我们的体内。
尾巴在人类中非常罕见，但在人类胚胎中会发现暂时的尾状结构。
在妊娠第五周或第六周，就可以看到“尾巴结构”的发育。
只是随着胎儿继续发育，在妊娠第八周，这部分结构会消失或者被吸收到体内，形成尾骨，因此大多数人出生时都是不带尾巴的。
而对于那些不幸的“返祖”小孩来说，都是发育阶段有缺陷才造成的。
发育缺陷造成的尾巴也分两种，一种是真正的残留尾巴，除了不美观，对身体没有其他健康影响；另一种是伪尾，外表看起来和真的尾巴一样，但通常是脊椎不能正常成型引起的，一般都伴随着先天性的疾病。
人类真的适合重新拥有尾巴吗？
这个话题，是极具争议性的。
我们先来大胆想象一下，如果我们有尾巴，会怎么样：
1、如果尾巴长度合适，将在人类如何保持平衡方面发挥作用；
2、运动方式会不同，体育和肉搏战中尾巴的作用将非常大；
3、从后面接近某人将是禁忌；
多了尾巴，就多了一个可以攻击的部位，因此站在人的后面将会认为是危险的信号。尾巴会成为你的弱点，如果有人抓住尾巴来伤害你，可能性就会增加，而你通过断尾来逃生，你将经历如同手指断裂的痛苦。
4、尾巴会被性化；
尾巴的长度和直径大小，将会是选择另一半的主要因素。
5、关于女性是否适合在公共场合露出尾巴，会引发激烈的争论。显露尾巴或有尾巴的女性，会因任何攻击或骚扰而被指责。
最后
尾巴是否应该再出现，是有争议的。
毕竟尾巴的消失，是大自然进化的力量，而且如今很多返祖现象，都伴随着先天的发育缺陷疾病。
但是反过来考虑，社会老龄化一直在加剧，尾巴的存在能让老年人更好的生活，若撇开尾巴带来的疾病困扰，我相信，很多人认为有尾巴也是一种很好的生活体验。
尾巴的存在，褒贬不一，你会赞成哪一种？
英语翻译：any animals use their tails to keep their balance.
If one day, your parents are old and have trouble walking, would you choose to wear a “machine tail“ to your parents or the elderly?-mimics
This weird invention came from Japan. Scientists named the robotic tail “Arque“ to help elderly people suffering from arthritis or balance problems maintain their balance and prevent falls.-mimics
The robotic tail, which mimics the tail of an animal, can maintain balance when running and climbing. It is 1 meter long, gray and soft, with artificial muscles that can move in different directions.-mimics
It is not surprising that such an invention occurred in Japan, because Japan is a severely aging country. One third of Japanese people are over 60 years old. Japan has become the “greiest“ country on earth, and there are a huge number of elderly people in need of care. .-mimics
Scientists believe that the robot tail can not only keep the elderly in balance without falling down, but also help workers maintain balance when carrying heavy objects, which is very practical.-mimics
The appearance of this invention has led to two very extreme attitudes.
On the one hand, I feel that the robotic tail can indeed help the elderly maintain balance and is practical; on the other hand, it feels ridiculous. Doesn’t this make humans “return to their ancestors“ backwards?-mimics
Humans have tails
Indeed, human ancestors had tails, until one day, after humans began to walk upright, they found that the tail did not have much value, so it slowly degenerated.-mimics
Today, there are still children born with tails.
Baraj, a 12-year-old Indian boy, has a strange tail on his back spine. He is regarded by the locals as the reincarnation of Hanuman the god monkey, and is worshipped and sought after by the people.-mimics
There are very few cases of human beings born with a tail, but that does not mean that reversion is impossible.-mimics
The tail gene has always been in our body.
Tails are very rare in humans, but temporary tail-like structures are found in human embryos.
In the fifth or sixth week of pregnancy, the development of the “tail structure“ can be seen.
Only as the fetus continues to develop, this part of the structure will disappear or be absorbed into the body in the eighth week of pregnancy, forming a tailbone, so most people are born without a tail.-mimics
For those unfortunate “returning to ancestors“ children, it is caused by defects in their developmental stages.-mimics
There are two types of tails caused by developmental defects. One is the real residual tail, which has no other health effects on the body except for its unsightly appearance; the other is the pseudo-tail, which looks the same as the real tail, but usually the spine cannot Normally formed are usually accompanied by congenital diseases.-mimics
Are humans really suitable for having a tail again?
This topic is extremely controversial.
Let us first imagine what would happen if we had a tail:
1. If the tail length is appropriate, it will play a role in how humans maintain balance;
2. The way of exercise will be different, the role of the tail in sports and hand-to-hand combat will be very large;-mimics
3. It would be taboo to approach someone from behind;
With more tails, there are more parts that can be attacked, so standing behind people will be considered a danger signal. The tail will become your weakness. If someone grabs the tail to hurt you, the possibility will increase. If you escape by docking the tail, you will experience pain like a broken finger.-mimics
4. The tail will be sexualized;
The length and diameter of the tail will be the main factors in choosing the other half.
5. Whether it is suitable for women to show their tails in public will cause fierce debate. Women who show or have tails will be blamed for any assault or harassment.-mimics
At last
Whether the tail should appear again is controversial.
After all, the disappearance of the tail is the power of nature’s evolution, and many reversions are now accompanied by congenital developmental defects.-mimics
But thinking about it conversely, the aging of society has been increasing. The existence of tails can make old people live better. If you put aside the disease problems caused by tails, I believe that many people think that having a tail is also a good life experience.-mimics
There are mixed reviews for the existence of the tail. Which one would you favor?
被电子科技大学录取，调剂到生物医学工程，该选择复读还是去上学
我觉的，对于这个问题，决定权还是在你的手里，我只能说说我的观点和建议，供你参考。
电子科技大学在全国来说，可算是一所比较牛叉的高校了，国家“211工程”，“985工程”，“双一流”重点建设高校，能考上这样的大学，说明你今年的高考成绩非常好。
生物医学工程专业主要学习生命科学，电子技术，计算机技术及信息科学方面的基本理论和知识，毕业生可以在生物医学工程领域，医学仪器，以及其他电子技术，计算机技术，信息产业等单位部门从事相关的研究，开发，管理等工作。-mimics
这个专业主要是把电子技术，信号检测与处理，计算机技术等应用到医学领域，主要研究医用设备，基本不学医术。是一个工科专业（很多时候，可以转行到IT，仪器仪表类行业）。
生物医学工程不是电子科技大学的传统强势专业，但是，这个专业在电子科技大学发展的还是比较快的，不过到现在为止，还是没有那些传统优势专业厉害，算是电子科技大学的普通专业吧。
至于你到底要复习还是去上大学？你先考虑几个问题，然后再决定。
1，你真的实在无法接受电子科技大学的生物医学工程专业吗？
2，如果你复读一年，你能保证最起码，最低考出今年这样的成绩吗？
3，你做好复读一年的准备了吗？心理压力，生理压力，外部环境的压力等等
4，你所在的省市，明年高考政策有变化吗？自己能适应吗？
考虑清楚以上几个问题，我想你自己也就知道该怎么办了。
