首页
登录
职称英语
The camera is often thought to be a modem invention. But as early 1727, a Ge
The camera is often thought to be a modem invention. But as early 1727, a Ge
游客
2024-02-16
17
管理
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. [br] 【B2】
选项
答案
compound
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3456012.html
相关试题推荐
______(他本以为他的演讲令人信服),butitisstillweakinsomepoints.Hemighthavethought
Whathethoughtanddidatschool______(与这个问题毫无关系)。hasnothingtodowiththisp
______(一想到周六的面试),shewillbecomeextremelynervous.AtthethoughtofSaturday’s
Noneofus____________(预料到他会出现)attheparty.Wethoughthewasstillinhospi
Mostpeoplethoughtthatthesecompetitorsdidn’t______theirprizesbecauseth
Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolo
Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolo
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
随机试题
Theoceanbottom—aregionnearly2.5timesgreaterthanthetotallandarea
OnWednesday,Sept.23,PresidentBarackObamausedhisfirst-everaddresst
Friendshipneedstobe【B1】______withsincereheartandsomeskills.Iamnot
(78)Theadvantagesanddisadvantagesofalargepopulationhavelongbeena
Fromanutilitarianpointofviewthereisnoneedforclothesto【S1】
[originaltext]CrimeisaseriousprobleminBritain.Onesortofcrimewhic
与所给词组在逻辑关系上最为贴近、相似或匹配的词组是: 关羽:三国演义:身在曹营
当表征某测定值或计算值恰好为A时,符合要求。下列表述正确的是()。A、小于等于
中国共产党对资本主义工商业进行社会主义改造的方式是 A.定息B.国家资本主义
.喷射混凝土的支护厚度,最小不应低于50mm,最大不应超过()。A.150mm
最新回复
(
0
)