首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Today, I’ll be talking about the invention of the camera and photography. The camera is often thought to be a modem invention. B
Today, I’ll be talking about the invention of the camera and photography. The camera is often thought to be a modem invention. B
admin
2010-04-12
100
问题
Today, I’ll be talking about the invention of the camera and photography. The camera is often thought to be a modem invention. But as early as 1727, a German physicist【B1】______that light darkened silver salt, a chemical【B2】______. Using as a cameras a big box with a small hole to let the light in, he made【B3】______images on the salt. Silver salt is still the base of film today. Then a French scientist made the first【B4】______ picture by using a special piece of metal【B5】______with silver salt.
A photography he made in 1826 still exists. The painter Dagera【B6】______on the process by placing common salt, the kind we eat, on the metal This was in 1839, the【B7】______date of the beginning of photography. But the problem was the【B8】______of the photographs, And【B9】______ In 1860’s, Matthew Brady was able to take his famous pictures of the American Civil War, thus making portrait poses very popular. In the 20th century, George Eastman of the United States and Edwards Land,【B10】______. If we say that the photography came into existence in 1839, it follows that【B11】______.
【B11】
选项
答案
it has taken more than one hundred years for the camera to reach its present condition of technical refinement
解析
转载请注明原文地址:https://kaotiyun.com/show/hVj7777K
0
大学英语四级
相关试题推荐
A、Becausetheylackpractice.B、Becausetheylackthegovernmentconcernofthismatter.C、BecausetheyarereluctanttouseEng
Haveyoueverbeenafraidtotalkbackwhenyouweretreated【S1】______?Haveyoueverboughtsomethingjustbecausethesalesm
Ithasbeenprovenmanytimesthatfarmersfarmtheirownlandmorecarefullyandproductivelythantheycultivatesomeoneelse’
A、Sellinghisear.B、Havinghiscarserviced.C、Leavinghiscarinhparkingservicecompany.D、Hiringacarabroad.C
Whatissuburbanization?Ifby"suburb"ismeantanurban【S1】______thatgrowsmorerapidlythanitsalreadydevelopedinterior
A、Sheisnotsurewhethertogetacreditcardornot.B、Sheisnotsurehowtouseacreditcard.C、Sheisnotsurewhichcredi
A、Heislazyandmakestroubleallthetime.B、Heachievesnothingandisjealousofothers.C、He’stooparticularabouthiswor
Thepartoftheenvironmentalmovementthatdrawsmyfirm’sattentionisthedesignofcities,buildingsandproducts.Whenwed
A、Becauseitisbetterthanotherfoods.B、Becauseittastesgood.C、Becauseitprovidescomfortandpleasure.D、Becauseitserv
A、Hethinksitnotdirty.B、Hefeelsverybad.C、Heisverytired.D、Hehasnotime.C
随机试题
在描述油浸岩心时,一般根据其含油面积确定颜色,若含油面积达到()左右,可按含油颜色定名,如浅棕色油浸粉砂岩。
简述多器官功能障碍综合征的发病机制。
Ⅱb型高脂蛋白血症发病的可能生化缺陷是
对房地产开发项目进行投资估算时,土地取得费用可以运用比较法来求取。()
项目风险分解的()是按项目建设的阶段对风险进行分解。
关于施工组织设计的编制原则说法错误的是()。
计算机能否输出正确的会计信息,完全取决于处理程序的正确与否。()
下列关于自然现象的说法,错误的是()。
设直线y=ax与抛物线y=x2所围成的图形面积为S1,它们与直线x=1所围成的图形面积为S2,且a<1.确定a,使S1+S2达到最小,并求出最小值.
A、Holdanexhibitiononcampus.B、GotoNewYorkCity.C、EnterforthetourtoBoston.D、MeettheEuropeanpainters.C①四个选项都是原形的
最新回复
(
0
)