首页
登录
职称英语
[originaltext] Most people might think that the fax machine, found in many o
[originaltext] Most people might think that the fax machine, found in many o
游客
2024-02-20
73
管理
问题
Most people might think that the fax machine, found in many offices and homes, is a relatively new piece of technology. In fact, a license for the fax machine was issued in 1843, 33 years before the telephone! A Scottish clockmaker, Alexander Bain, invented this device in the same year that the first telegraph message was being sent across America.
Although Bain worked out the method, he never actually sent a fax transmission. It was not until 1865 that the first working fax machines and transmission service were setup. (34) An Italian man named Giovanni Casel-li developed the "pan-telegraph" which was used to send pictures and writing between French cities.
The way that a fax machine works is quite straightforward. A machine scans horizontally across the sheet one line at a time—like your eyes when you’re reading a book. If the machine sees a white patch it records a 0, and if it sees a dark patch it records a 1. In this way the whole page is "digitized" into a string of 0s and Is. (35) A modem turns this into a series of high or low pitched sounds that are sent down the phone line to a remote receiver. At the other end, the sounds are turned back into 0s and 1s. These are printed onto a piece of paper as light or dark dots, and so the original picture is reproduced hundreds of miles away.
33. What is the main topic of the passage?
34. What was the "pan-telegraph" first used for?
35. What do we learn about the modem?
选项
A、Sending telegraph messages.
B、Monitoring fax machines.
C、Recording transmission service.
D、Sending pictures and writing.
答案
D
解析
题干询问传真电报的最初用途。短文中提到,它最初用于法国城市之间传输图片和文字,故答案为D)。
转载请注明原文地址:https://tihaiku.com/zcyy/3466297.html
相关试题推荐
[originaltext]M:Well,here’syourroom,ma’am.Um...afteryou.W:Why,tha
[originaltext]M:Well,here’syourroom,ma’am.Um...afteryou.W:Why,tha
[originaltext]M:Nowthatyouareallhere,letmeshowyouaroundthisplant,
Somepeoplearecontenttolimittheirinvestmentprogramstosuchsafeinve
Somepeoplearecontenttolimittheirinvestmentprogramstosuchsafeinve
Somepeoplearecontenttolimittheirinvestmentprogramstosuchsafeinve
Somepeoplearecontenttolimittheirinvestmentprogramstosuchsafeinve
Somepeoplearecontenttolimittheirinvestmentprogramstosuchsafeinve
____________(鉴于社会的实际需要)therearemoreandmorepeopleinterestedinlearningEng
[originaltext]Whenmyinterestshiftedfromspacetothesea,Ineverexpec
随机试题
[originaltext]Theentertainmentprofession,or"showbusiness",attractsma
NotalluniversitiesintheU.S.offerafull______ofprogramsleadingfroma
Thetoneofthearticle______thewriter’smoodatthetime.(2006年考试真题)A、reprodu
Ioughtto______themaboutthenews,butIforgottodoso.A、remembertellingB、
Businessesarestructuredindifferentwaystomeetdifferentneeds.The【B1】
起重吊装及安装拆除工程,采用非常正规起重设备、方法的,且(),需要编制安全
设3阶实对称矩阵A的特征值为λ1=1,λ2=2,λ3=-2,α1=(1,-1,1
水泵安装时,无底座直接传动的卧式机组安装的流程顺序正确的是()。A、校正一吊水
共用题干 B企业为扩大产能,投资1.5亿元,新建12000m2厂房,新建厂房为
对违反献血法规定,向医疗机构提供不符合国家规定标准的血液的血站,应当A.由县级以
最新回复
(
0
)