首页
登录
职称英语
[originaltext] Thomas Edison is a well known American inventor. He was taugh
[originaltext] Thomas Edison is a well known American inventor. He was taugh
游客
2023-07-13
49
管理
问题
Thomas Edison is a well known American inventor. He was taught by his mother when he was a child. Later he learned things by himself by reading and experimenting. He built a lab for himself to work in, and he worked very hard in his sixty years of scientific activities. He made over a thousand inventions. Few inventors in the world have had such great success.
Edison’s first invention was made in 1868. He was then a telegraph operator. He wished to work out a new method to improve the old telegraph system because it was impossible at that time for the system to send more than one message along the same line at the same time. He read all the works of Faraday, another great scientist, before starting his invention. Sometimes he didn’t go to bed and didn’t even stop to eat. He thought he had very much to do and there was no time to lose. Days and nights he was reading and reading. After he read through Faraday’s writings, he began his experiments. A few months later he succeeded in building a double transmitter and improved the old telegraph System.
选项
A、In 1848.
B、In 1858.
C、In 1868.
D、In 1878.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2833542.html
相关试题推荐
[originaltext]Museumshavechanged.Theyarenolongerplacesforthepriv
[originaltext]IfyouplantoremainintheUnitedStatesforanylengthof
[originaltext]IfyouplantoremainintheUnitedStatesforanylengthof
[originaltext]M:Goodafternoon,Mrs.Keaton.W:Goodafternoon,Mr.Duncan.Pl
[originaltext]M:Haveyounoticedthenewdustbindownstairs,attheentranceo
[originaltext]M:Haveyounoticedthenewdustbindownstairs,attheentranceo
[originaltext]W:Isupposeyouhaveboughtsomegiftsforyourfamily.M:Well,
[originaltext]W:Isupposeyouhaveboughtsomegiftsforyourfamily.M:Well,
[originaltext]W:Isupposeyouhaveboughtsomegiftsforyourfamily.M:Well,
[originaltext]W:Isupposeyouhaveboughtsomegiftsforyourfamily.M:Well,
随机试题
[originaltext]Anewstudyhasfoundevidenceofaggressivebehaviorinchil
知道“三角形任意两边长之和都大于第三边”,属于()知识。A.陈述性 B.条件
研究在群体环境下个体心理发生、发展及其变化规律的心理学分支学科是()。A.
共用题干 EvenIntelligentPeopleCanFail1
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
统计最基本的职能是()。A.信息职能 B.调查职能 C.咨询职能 D.决
可表现为肾病综合征的疾病是 A.Ⅱ型急进性肾炎B.局灶节段性肾小球硬化 C
(2020年真题)下列合同计价方式中,在工程施工中“量”与“价”方面的风险分配对
工程交接验收前,建设单位应检查工业管道工程施工的技术资料有( )。A.施工标准
A.心尖部双期杂音 B.主动脉2区双期杂音 C.肺动脉瓣区舒张期杂音 D.
最新回复
(
0
)