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] 【B4】
选项
答案
base
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3456014.html
相关试题推荐
______(他本以为他的演讲令人信服),butitisstillweakinsomepoints.Hemighthavethought
Noneofus____________(预料到他会出现)attheparty.Wethoughthewasstillinhospi
【B1】[br]【B2】A、heartB、mindC、moodD、thoughtBbearinmind为固定搭配,意为“切记”,相当于keep
Shefeltkeenlythrilled______(一想到要见他).atthethoughtofmeetinghim根据句法分析可知,本句为
Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolo
Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolo
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
随机试题
Formanyofus,petshavecometooccupycriticalrolesinourlives.Thel
Shedidherwork______hermanagerhadinstructed.A、asB、untilC、whenD、though
填入下面句子横线上最恰当的一组词是( )。 全国高校以竞争选优的______
融资融券交易包括()。 Ⅰ.券商对投资者的融资、融券 Ⅱ.金融机构对券
下列关于证券自营业务持仓规模要求的说法中,正确的是()。 ①证券专营机构负债
下列最适选用可待因的是A.长期慢性咳嗽 B.支气管炎伴胸痛 C.结核性胸膜炎
在我国,实施外汇管理、监督管理银行间外汇市场是()的职责。A.外汇管理局 B
施工现场的交接与协调内容包括()。A.机电与土建、装饰专业的交接与协调 B.
工程造价咨询人开展工程造价司法鉴定工作时,正确的做法有()。A.应按仲裁、诉讼程
病人发生心肌梗死时,血液中哪种乳酸脱氢酶的同工酶的浓度明显升高A.LDH1 B
最新回复
(
0
)