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
74
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】______.
【B5】
选项
答案
sensitized
解析
转载请注明原文地址:https://kaotiyun.com/show/TVj7777K
0
大学英语四级
相关试题推荐
A、Sheregrettedhavingboughtthesecond-handcar.B、Itisunnecessarytorentanotherhouse.C、Theyshouldselltheirsecond-ha
A、TheNewWorldmonkeyshavesmallernoses.B、TheNewWorldmonkeysliveinCentralandNorthAmerican.C、AllNewWorldmonkeys
AlcoholismIntheUniteStatesalone,alcoholismaffectsmillionsofpeopleandcoststhecountrybillionsofdollarseachye
Haveyoueverbeenafraidtotalkbackwhenyouweretreated【S1】______?Haveyoueverboughtsomethingjustbecausethesalesm
WhenmenreturnedfromWorldWarIIandthepostwar"babyboom"began,Americansbegantomoveingreatnumberstothe【B1】______
A、Disadvantagesoftallbuildings.B、TheCrystalPalaceExhibition.C、Modemelevators.D、Theinventionoftheelevator.D
Women’sroleinpoliticshasbeenchanging.Duringthe【B1】______movement,womenbegantoplayanactiveroleinAmericanpolit
A、Hetalkedwiththeconsultantuntiltwo.B、Theconsultantwasleavingattwo.C、Theconsultantwantedtotalktohim,too.D、H
Formanywomenchoosingwhethertoworkornottoworkoutsidetheirhomeisaluxury:theymustworktosurvive.Othersfacea
A、Howtoworkbetter.B、Howtousetime.C、Howtoco-operatewithothers.D、Howtochoosethesuitableclothes.A
随机试题
女性,44岁,发现心脏扩大10年。近2年来活动后心悸,气短,下肢水肿。近2周来加重,夜间不能平卧,恶心,纳差,上腹饱胀,少尿,下肢水肿加重。查体:颈静脉怒张,双肺底闻高调细小水泡音,心脏扩大,心尖部闻及2/6级收缩期杂音,心率100次/分,律不整,早搏3次
A、大隐静脉剥脱术B、阑尾穿孔切除术C、肠梗阻坏死的手术D、肠道手术E、开放骨折手术上述手术中,手术切口属于I类切口的是
甲与乙订立了一份材料购销合同,约定甲向乙交付相应的材料,货款为80万元,乙向甲支付定金4万元;同时约定任何一方不履行合同应支付违约金6万元。合同到期后,甲无法向乙交付材料,乙为了最大限度保护自己的利益,应该请求()。
作为一名社会人,之所以需要购买保险,不仅仅体现的是风险管理的思想,还体现出自己的生命价值,从风险管理的角度来看,人的生命价值在于()。
某增值税一般纳税企业委托外单位加工一批消费税应税消费品,材料成本100万元,加工费10万元(不含税),受托方增值税税率为17%,受托方代收代缴消费税2万元。该批材料加工后委托方直接出售,则该批材料加工完毕入库时的成本为()万元。
Mydadismyherobecauseheisbrave,skilled,andrespectful.Heteachesmeaboutbecomingaman,whichis【C1】_________importa
公安行政执法的范围包括()。
《中华人民共和国食品安全法》规定,预包装食品的包装上应当有标签。标签中应当标明()。
发展社会主义市场经济,必须建立主要由市场形成价格的机制,因为只有这样的价格机制,才能()。
Inthispartofthetest,youareaskedtogiveashorttalkonabusinesstopic.Youhavetochooseoneofthetopicsfromthe
最新回复
(
0
)