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
35
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] 【B5】
选项
答案
permanent
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3456015.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
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
随机试题
Thesechildrenlookedverynervousand______whentheywereonsuchabigstage
中国画(traditionalChinesepainting)是用毛笔、墨及颜料(pigment),在宣纸(Xuanpaper)、或绢(silk)
BillStoneisnotanastronaut—heistheworld’smostfamouscaver.Leadin
Ifyoulie____________(立誓之后),youcanbefoundguiltyofperjury.whileyouare
A.肺动脉瓣区第二音(P)亢进 B.剑突下见心脏搏动 C.心浊音界缩小或叩不
患儿男,10岁,25kg。拟在全麻下行脊柱侧弯矫形术,术前情况无特殊。需要监测脊
Passage1 Alyricisasubjectivepoem
以下物质中不影响人血浆中晶体渗透压的是A.钠B.蛋白质C.氯D.葡萄糖E.尿素
更换断路器的红灯泡时应注意哪些事项?
飞机按推进装置的不同,可分为( )。 A.近程飞机 B.螺旋桨飞机
最新回复
(
0
)