找不到好的英语六级听力练习材料?绝对是你的不二选择。大家平时多用英语磨耳朵,时间长了英语六级听力绝对会有很大的提高。
英语六级听力练习:标准4.12 点击收听
Severe spinal cord injuries usually lead to total loss of control of lower extremities, as well as bladder, bowel and sexual functions. But scientists at the University of Louisville, Kentucky, say an implanted electrical device is helping the patients regain at least some of that control.
A dirt bike accident five years ago left Ken Stephenson paralyzed from the chest down. Doctors told him that he would never be able to stand up again.
They said, based on what theyve diagnosed and how I broke my back and everything, that I wouldnt be able to move my legs again or feel anything ever again, said Stephenson.
Another blow to the young man was the loss of sexual function.
Now, however, thanks to a small device implanted in his back that electrically stimulates his spinal cord, Stephenson has regained some ability to enjoy activities he thought were left behind forever.
Dr. Roderic Pettigrew, of the National Institutes of Health, explained, The goal was to modulate those damaged nerves in the spinal cord so that they once again could, would, become receptive to stimuli.
The stimulator is turned on with a remote control and allows Stephenson to move one leg at the time. Other functions improved, too.
The sexual function thing was huge for me because it was basically nothing before and, I mean, now, like, its a lot better, said Stephenson.
Three other patients reported similar improvements, although none of them can walk.
Pettigrew stresses that the device is not a cure and that more research is needed before it can be widely available. He said a spinal cord injury, though, may no longer mean a lifelong sentence of paralysis.
What we see today with these four individuals now being able to have voluntary motion and voluntary control of their limbs and involuntary control of functions like bladder and bowel is very exciting, said Pettigrew.
Researchers now plan to implant the device in eight more patients and try to stimulate more than one muscle group at the time.
2007年职称英语题库:综合类B级真题参考答案
2009年职称英语题库:综合类b级真题及答案汇总
2005年职称英语题库:综合类B级真题词汇选项
2007年职称英语题库:综合类B级真题补全短文
2012年职称英语(综合类A级)考前预测——概括大意
2006年职称英语题库:综合类B级真题完型填空
2015职称英语考试真题及答案:综合B级阅读理解(三)
2009年职称英语题库:综合类b级真题词汇选项
2015职称英语考试真题及答案解析:综合B级词汇选项
2006年职称英语题库:综合类B级真题阅读判断
2009年职称英语题库:综合类b级真题补全短文
2006职称英语考试综合类B级真题及答案
2007年职称英语题库:综合类B级真题阅读理解
2008职称英语考试真题及答案解析:综合B级阅读理解
2006年职称英语题库:综合类B级真题词汇选项
2006年职称英语题库:综合类B级真题补全短文
2007年职称英语题库:综合类B级真题词汇选项
2008职称英语考试真题及答案解析:综合B级阅读判断
2006年职称英语题库:综合类B级真题阅读理解
2015职称英语考试真题及答案:综合B级补全短文
2005年职称英语题库:综合类B级真题阅读理解
2015职称英语考试真题及答案:综合B级参考答案
2008职称英语考试真题及答案解析:综合B级词汇选项
2005年职称英语题库:综合类B级真题补全短文
2008职称英语真题及答案:综合B级概括大意与完成句子
2005年职称英语题库:综合类B级真题参考答案
2006年职称英语题库:综合类B级真题概括大意完成句子
2005年职称英语题库:综合类B级真题阅读判断
2007年职称英语题库:综合类B级真题完型填空
2012年职称英语考试综合类冲刺试卷——词汇选项
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |