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
3
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
通过公开张贴或者通过报纸、电台、电视、网络等媒体公开向社会发布公文的行文方式叫(
A.传播方向相同,电场强度的振动方向互相垂直 B.传播方向相同,电场强度的振动
A.商阳 B.少商 C.太渊 D.列缺 E.侠白在手拇指末节桡侧,距指甲
诊断原发性肝细胞癌最有意义的指标是()A.ALTB.ASTC.AFPD.ALP
用水泥土搅拌成桩的施工流程是:定位→预埋下沉→提升并喷浆搅拌→重复下沉搅拌→重复
吸气时出现脉搏显著减弱或消失的现象可见于A:主动脉瓣关闭不全 B:心包积液
以下属于婉约派的代表人物的是( )A.苏轼 B.辛弃疾 C.李清照
建设单位应当将大型的人员密集场所和其他特殊建筑工程的消防设计文件报送公安机关消防
临床选用三棱针治疗急性热病、昏厥宜用A.点刺法 B.散刺法 C.刺络法 D
船舶领到卫生检疫机关签发的入境检疫证后,可以降下检疫信号。( )
最新回复
(
0
)