首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
The pleasures which a movie offers to our eyes have been paid for with the loss of sight of a man whose name is hardly known out
The pleasures which a movie offers to our eyes have been paid for with the loss of sight of a man whose name is hardly known out
admin
2018-05-06
46
问题
The pleasures which a movie offers to our eyes have been paid for with the loss of sight of a man whose name is hardly known outside the annals of science—Joseph Plateau, a Belgian professor, born in Brussels in 1801.
He studied the mechanism of sight, beginning a series of most dangerous experiments at the age of 28 by staring into the sun for 25 seconds to see what the effect on his eyes would be. He was blind for nearly a month. But he went on experimenting, increasing the length of time during which he looked into the sun, knowing that in the end this would cost him his sight. At the age of 42 he was completely and incurably blind: the sun had destroyed the retina(视网膜) of his eyes. But he continued to work as well as he could until he died at the age of 82.
Science profited enormously from his research. He studied the so-called "inertia of the eye (视觉暂留 )" which makes a picture remain on the retina for about one-sixth of a second after it has disappeared from our vision. This means that, if we see a succession of individual pictures each of which appears only for a fraction of a second, they " overlap" in our brain: and if they show consecutive phases of movement, that movement will appear to us to be continuous.
A picture remains on the retina for______.
选项
A、6 seconds
B、1 second
C、16 seconds
D、1/6 of a second
答案
D
解析
事实细节题。从文章第三段第二句“…a picture remain on the retina for about one-sixth of a second…”可知,一个画面可以在视网膜上停留的时间是六分之一秒,所以本题的正确答案是D。
转载请注明原文地址:https://kaotiyun.com/show/AzPC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Electricalenergy______fromthesuninaroundwayisthemostwidelyusedenergytoday.
We’veallheardofThomasEdison,______whoinventedtheelectriclightandmanyotherthings.
Howfitareyourteeth?Areyoulazyaboutbrushingthem?Neverfear:Aninventorisonthecase.Anelectrictoothbrushsenses
A、Alicedidn’tseemtobenervousduringherspeech.B、Aliceneedsmoretraininginmakingpublicspeeches.C、Themancanhardly
Hardly______attheofficewhenthetelephonerang.
Youngpeoplenowlivealife-style______theirparentscouldhardlydreamof.
Hewasspeakingsofast______wecouldhardlyfollowhim.
Weshallhardlypleaseeveryone,norisitnecessarythatwe______.
随机试题
下列叙述中,错误的是()。
面的烹调方法为煮、烙、蒸、炸等,_______的营养素损失较少。
女,15岁,凸面型,鼻唇角小,面下1/3长,磨牙中性关系,尖牙远中关系,前牙Ⅲ度深覆牙合,覆盖6mm,上颌前牙段拥挤4mm,下颌前牙段拥挤6mm,ANB5.5度
男,38岁,右上腹疼痛、寒战、高热、黄疸1天。查体:体温39.6℃,血压83/60mmHg。皮肤巩膜黄染,右上腹及剑突下压痛,可及肿大胆囊,血白细胞26×109/L。诊断为
甲集团是ABC会计师事务所的常年审计客户。A注册会计师负责审计甲集团2018年度财务报表,确定财务报表整体的重要性为200万元。 资料一: (1)甲集团利用ERP系统核算应收账款,在以前年度,利用ERP系统之外的Q软件手工输入相关数据后进行应收账款账龄
一般资料:求助者,女性,26岁,未婚,硕士研究生学历,公司职员。案例介绍:求助者父亲在春节时突发心脏病去世,求助者非常痛苦,久久不能摆脱。近来经常有不安感,害怕自己或母亲也有什么不幸,为此生活中总是小心翼翼,就连乘车时都担心发生车祸。因担心安全,多次婉拒
教师劳动的复杂性主要是由_____决定的。【】
DanielleSteel,America’ssweetheart,isoneofthehardestworkingwomeninthebookbusiness.Unlikeotherproductiveauthors
某商品的销售量x是P的函数,如果欲使该商品销售收人在价格变化情况下保持不变,则销售量x对于价格P的函数关系应满足什么微分方程,在这种情况下该商品需求量相对价格P的弹性是什么?
可以作为窗体记录源的是______。
最新回复
(
0
)