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
2023-07-15
24
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] 【B8】
选项
答案
by
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2839752.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
Noneofus____________(预料到他会出现)attheparty.Wethoughthewasstillinhospi
Mostpeoplethoughtthatthesecompetitorsdidn’t______theirprizesbecauseth
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
随机试题
Anthropologistsagreethatourprimitiveancestorswhoinhabitedthetropicspro
Afterweeksofputtingitoff,Ifinally_________paintingthebedroom.A、takeon
Itseemsthereislittleevidencethatorganicfoodsaremorenutritioustha
因发包人违约解除合同的,发包人应在解除合同后28天内向承包人支付下列()金
红细胞脆性孵育实验结果错误的是A:遗传学球形红细胞增多症脆性增加B:遗传学椭圆
A. B. C. D.
(2014年真题)甲房地产开发公司(以下简称甲公司)拟将正在建设的高档商品房项
不能从上述资料中推出的是()。A、2021年1-5月,全国
标准施工合同通用条款中对监理人的定义是,“受发包人委托对合同履行实施管理的(
材料配置计划确定依据是()。A.施工进度计划 B.资金计划 C.施工工
最新回复
(
0
)