首页
登录
职称英语
What are the scientists at the University of California doing to help patients b
What are the scientists at the University of California doing to help patients b
游客
2024-12-27
16
管理
问题
What are the scientists at the University of California doing to help patients blink? [br]
Most of us blink without thinking. But people who have sustained strokes or combat injuries can lose their ability to blink, which is important for lubricating and cleaning the eye. Surgery is an option—a small piece of muscle transplanted from the leg can sometimes work. But the operation takes 10 hours and has its own dangers. So scientists at the University of California, Davis, Medical Center are developing artificial muscles to help patients blink again. (9)
The blink system starts with what researchers call an eyelid sling, a small piece of muscle or fabric that holds the eyelid. The sling attaches to bone around the eye. It’s then linked to an electrostatic polymer—basically a piece of flexible plastic that expands or contracts via voltage change. A tiny battery hidden in a natural hollow in the temple powers the polymer. Electrical current keeps the muscles contracted and the eyes open. Kill the current and the lid closes. (10)
Here’s the creepy part—the mechanism’s been tested on cadavers, which are blinking away. But now that the principle is proven, in the next years real patients could be on the brink of a blink.
选项
A、The eyelid sling.
B、The temples.
C、The electrostatic polymer.
D、A tiny battery.
答案
B
解析
辨别题。新闻的主体部分提到科学家发明的人工眨眼系统的工作原理:The blink system starts with what researchers call an eyelid sling, a small piece of muscle or fabric that holds the eyelid. It’s then linked to an electrostatic polymer—basically a piece of flexible plastic that expands or contracts via voltage change. A tiny battery hidden in a natural hollow in the temple powers the polymer. 根据这一工作原理可知temple是埋电池的地方,并不属于人工眨眼系统的一部分,所以答案为B。
转载请注明原文地址:https://tihaiku.com/zcyy/3886357.html
相关试题推荐
Ofthefollowinguniversities,whichoneistheoldestintheU.K.?A、University
Thereareabout______universities,includingtheOpenUniversityinBritain.A、70
ScientistssaidThursdaythatanewAIDSvaccine,thefirsteverdeclaredto
ScientistssaidThursdaythatanewAIDSvaccine,thefirsteverdeclaredto
ScientistssaidThursdaythatanewAIDSvaccine,thefirsteverdeclaredto
ScientistssaidThursdaythatanewAIDSvaccine,thefirsteverdeclaredto
ScientistssaidThursdaythatanewAIDSvaccine,thefirsteverdeclaredto
WhenscientistsattheAustralianInstituteofSportrecentlydecidedtoche
WhenscientistsattheAustralianInstituteofSportrecentlydecidedtoche
Inthepast,auniversitycouldexpelregularstudentsiftheygotmarriedd
随机试题
Youshouldspendabout20minutesonQuestions27-40,whicharebasedonReading
WhichofthefollowingisNOTmentionedbytheauthoramongthingsthatareinhe
Ifyoulooktotheleft,youwillseeariverofgreat(wide)______.width原句空格中应填
BustaMyth,GetaBenefitFewsubjectsharbormore
PreparingChildrentoBeSafeatCollegeA)Moneycanbuymany
某软件项目包含8项活动,活动之间的依赖关系,以及各活动的工作量和所需的资源如下表
“三人联锁爆破制”是爆破工、瓦斯检查工和()3人,以换牌联锁的方式,互相制约和
A.异黄酮B.查耳酮C.二氢黄酮D.黄酮醇E.黄酮H-NMR中C环质子以一个尖锐
增加饮食中纤维的含量,喝大量的水,多做运动可减少的副作用是A、头痛 B、眩晕
A.服用茶碱类平喘药 B.鸡尾酒疗法服用蛋白酶抑制剂 C.茶中的成分 D.
最新回复
(
0
)