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
36
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/3456018.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
Mostpeoplethoughtthatthesecompetitorsdidn’t______theirprizesbecauseth
Shefeltkeenlythrilled______(一想到要见他).atthethoughtofmeetinghim根据句法分析可知,本句为
Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolo
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
随机试题
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
ThissectionmeasuresyourabilitytounderstandacademicpassagesinEnglis
Whatdidthewomanaskthemantodo?[br][originaltext]W:Hello,Steve?M:Hi
[originaltext]W:Goodafternoon.CanIhelpyou?M:Yesplease.I’mlookingfor
中国是一个地域辽阔、有着数千年悠久历史的多民族国家,有着秀丽的自然风光、众多的名胜古迹和丰富多彩的灿烂文化,旅游资源十分丰富。改革开放以来,中国经济以年
Itiscustomaryforadultstoforgethowhardanddullandlongschoolis.T
下列各项中,不属于项目管理的工具方法的是( )。A.挣值法 B.成本效益法
下列哪项不是起居作息养生方法所指的内容()A.和谐自然 B.起居有常 C.
在确定材料定额消耗量时,建筑工程必须消耗的材料不包括( )A.不可避免的场外运
慢性阻塞性肺疾病患者膳食的原则是A.高蛋白、高热量、高维生素饮食 B.低蛋白、
最新回复
(
0
)