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
外语
The camera is often thought to be a modem invention. But as early 1727, a German physicist 【B1】______ that light darkens silver
The camera is often thought to be a modem invention. But as early 1727, a German physicist 【B1】______ that light darkens silver
admin
2013-03-11
85
问题
The camera is often thought to be a modem invention. But as early 1727, a German physicist 【B1】______ that light darkens silver salt in a chemical 【B2】______ . Using a camera, a big box with a small hole to let the light in, he made 【B3】______ images on the salt. Silver salt is still the 【B4】______ of film today. Then a French scientist made the first 【B5】______ picture by using a special 【B6】______ of metal sensitized with silver salt. A photography he made in 1826 still 【B7】______ . The painter, Daguerre improved on the process 【B8】______ placing common salt the kind we eat on the metal. This was in 1839, 【B9】______ , but the problem was the printing of photographs, and it wasn’t until other scientists developed the kind of paper we now use, that good printing was possible and photograph become truly modem. In 1860, Matthew Bradey was able to take his famous pictures of the American Civil War, 【B10】______ . In the 20th century, George Eastman of the United States simplified film developing, and Dr. Edwin Land invented the so-called "instant" camera with self developing film. 【B11】______ it has taken more than one hundred years for the camera to reach its present condition of technical refinement.
【B11】
选项
答案
If we say that photography came into existence in 1839 it follows that.
解析
转载请注明原文地址:https://kaotiyun.com/show/6au7777K
0
大学英语四级
相关试题推荐
A、Themanshouldbuyhimselfanewsuit.B、Theman’sjeansandT-shirtsarestylish.C、Themancandresscasuallyfortheoccasi
A、Itbeginsfromacampus.B、It’sfivemileslong.C、Itgoesaroundthecityhall.D、Ittakesafewdaystocover.A推断题。浏览选项可知,选
Whileitseemsprettyobviousthatgratitudeisapositiveemotion,psychologistsfordecadesrarelydelved(探究)intothescienc
A、She’sbeendismissedforherpoorperformance.B、She’sbeenfiredbythecompany.C、Shehasbeengivenamonth’sleave.D、She
Forthispart,youareallowed30minutestowriteacompositiononthetopic:ProtectionofEnvironment.Youshouldwriteatle
A、Whethershoppingisgood.B、Whichshoppingcenterisgood.C、Bargainingtobuyhighheels.D、Whattheyneedtobuy.A
Asinthefieldofspacetravel,soinunderseaexplorationnewtechnologiescontinuetoappear.Theyshareanumberofsimilari
Timeandhowweexperienceithavepuzzledphysicistswhohavecreatedfascinatingtheories.Buttheirtimeismeasuredbyapen
Allthewisdomoftheages,allthestoriesthathavedelightedmankindforcenturies,areeasilyandcheaply【C1】______toallof
Allthewisdomoftheages,allthestoriesthathavedelightedmankindforcenturies,areeasilyandcheaply【C1】______toallof
随机试题
带有速度、电流双闭环调速系统,在起动时速度调节器处于()状态。
晚期肺癌的临床表现。
对于商标注册的申请,下列选项的叙述有错误的是( )。
TT系统适用于()。
枢纽工程专项验收委员会成员包括()。
下列关于账户式资产负债表格式的说法中,错误的是()。
十进制数5的单精度浮点数IEEE754代码为()。
计算机网络中常用的传输介质中传输速率最快的是()。
ResearchingtheoriginofmedievalmanuscriptsBackgroundMedievalmanuscripts—handwrittenbooksproducedbetweenthefifth
Likemanypeople,I’vealwaysseentheOlympicsasthe"main"sportingeventheldeveryfouryears—theheadlineact—andthePara
最新回复
(
0
)