首页
登录
职称英语
A new high-performance contact lens under development at the department for
A new high-performance contact lens under development at the department for
游客
2023-08-18
44
管理
问题
A new high-performance contact lens under development at the department for applied physics at the University of Heidelberg will not only correct ordinary vision defects but will enhance normal night vision as much as five times, making people’s vision sharper than that of cats.
Bille and his team work with an optical instrument called an active mirror—a device used in astronomical telescopes to spot newly emerging stars and far distant galaxies. Connected to a wave-front sensor that tracks and measures the course of a laser beam into the eye and back, the aluminum mirror detects the deficiencies of the cornea, the transparent protective layer covering the lens of the human eye. The highly precise data from the two instruments—which, Bille hopes, will one day be found at the opticians(眼镜商)all over the world—serve as a basis for the production of completely individualized contact lenses that correct and enhance the wearer’s vision.
By day, Bille’s contact lenses will focus rays of light so accurately on the retina(视网膜)that the image of a small leaf or the outline of a far distant tree will be formed with a sharpness that surpasses that of conventional vision aids by almost half a diopter(屈光度). At night, the lenses have an even greater potential. "Because the new lens—in contrast to the already existing ones—also works when it’s dark and the pupil is wide open," says Bille, "lens wearers will be able to identify a face at a distance of 100 meters"—80 meters farther than they would normally be able to see. In his experiments night vision was enhanced by an even greater factor: in semi-darkness, test subjects could see up to 15 times better than without the lenses.
Bille’s lenses are expected to reach the market in the year 30, and one tentative plan is to use the Internet to transmit information on patients’ visual defects from the optician to the manufacturer, who will then produce and mail the contact lenses within a couple of days. The physicist expects the lenses to cost about a dollar a pair, about the same as conventional one-day disposable lenses. [br] According to Bille, with the new lenses the wearer’s vision _____.
选项
A、will be sharper by a much greater degree at night than in the daytime
B、can be better improved in the daytime than at night
C、may be broadened about 15 times than without them
D、will be far better at night than in the daytime
答案
A
解析
第3段最后一句提到“在他的实验中,夜间视力提高的倍数更大”。A中的by a much greater degree是原文by an even greater factor的近义改写,故选A。
转载请注明原文地址:https://tihaiku.com/zcyy/2937141.html
相关试题推荐
“西部大开发”(WesternDevelopment)是中国促进经济发展的一项重要政策。自从实行改革开放的政策以来,尤其是中国东南沿海城市的经济特区(
经过几千年的发展,这类戏曲艺术才逐渐变得完整。Itwasnotuntilseveralthousandyearsdevelopmentthat
Indepartmentstoresandclosetsallovertheworld,theyarewaiting.Their
Indepartmentstoresandclosetsallovertheworld,theyarewaiting.Their
Anewhigh-performancecontactlensunderdevelopmentatthedepartmentfor
Anewhigh-performancecontactlensunderdevelopmentatthedepartmentfor
[originaltext]W:ArtDepartment,thetreasurerBrownspeaking.M:Hello,Profes
[originaltext]W:ArtDepartment,thetreasurerBrownspeaking.M:Hello,Profes
Abouttwoweeksago,theU.S.DepartmentofHealth’sSubstanceAbuseandMe
Abouttwoweeksago,theU.S.DepartmentofHealth’sSubstanceAbuseandMe
随机试题
Themansittingoppositemesmileddreamily,asif________somethingpleasanti
患者,男,28岁,因车祸导致腹部外伤,出现剧烈腹痛就诊,查体:急性痛苦面容,神志
A.降血糖B.抗心律失常C.解热D.抗炎E.抑制钠泵黄连的药理作用不包括
小柴胡汤与大柴胡汤中均含有的药物是A.黄芩、枳实 B.半夏、大黄 C.
政府预算是政府依法行政的基本保障,是国家意志的集中体现,这就要求政府预算编制时应
作为反映证券市场容量重要指标的证券化率是指()。A:证券市值/GDFB:证券面
关于组织结构设计的描述,正确的是()。A.组织结构的本质是企业员工的分工协作关
适用于规模比较大、经济业务较多的单位的账务处理程序是()A.记账凭证账务处理程
急性严重锥体束损害的断联休克表现为 A.痉挛性瘫,腱反射消失 B.痉挛性瘫,
关于安全生产事故调查的管辖,下列说法中错误的是( )。A.特别重大事故由国务院或
最新回复
(
0
)