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
2024-02-14
57
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://www.tihaiku.com/zcyy/3449808.html
相关试题推荐
[originaltext]Thereseemsnevertohavebeenacivilizationwithouttoys,b
[originaltext]Manyloverspromisetobetogetherforever,inlifeandinde
[originaltext]Manyloverspromisetobetogetherforever,inlifeandinde
[originaltext]Manyloverspromisetobetogetherforever,inlifeandinde
[originaltext]M:Doyouthinkyoungpeoplearegiventoomuchfreedomnowadays,
[originaltext]M:Doyouthinkyoungpeoplearegiventoomuchfreedomnowadays,
[originaltext]W:Dad!M:Yes?What’sthematter,Mary?W:I’mwonderingifIsh
[originaltext]M:Thisisit.Iknowthatitissmallerthanyouwanted,butit
[originaltext]W:Mr.Watson,Iwonderwhetherit’spossibleformetotakeava
[originaltext]W:Mr.Watson,Iwonderwhetherit’spossibleformetotakeava
随机试题
"TheStar-SpangledBanner"isthenational______oftheUnitedStates.A、anthemB、
HowoldwasKissingerwhenheandhisfamilymovedtotheU.S.?[br][originalt
Tomhadbeeninvitedtotheeveningpartybut_______onthegroundsthathewas
Hospitaldoctorsdon’tgooutveryoftenastheirworktakes______theirtime.A、a
[originaltext]W:MayIhelpyou?M:Yes.Iwouldliketoapplyforoneofthese
游泳池给水在池壁配水时,其配水口深度在游泳池水面下()m。A.0.3 B.
统计执法检查的主体是县级以上各级人民政府法制工作机构。()
患者,男,16岁。因感冒2周伴心悸胸闷3天来诊。心电图结果为频发室性期前收缩,拟
()指决策时如果改变对结果的描述改变参照点,会影响人们的偏好选择。A.确
高程注记点应切读两次,读数较差一般不大于()m,取中数注至0.1m。A.
最新回复
(
0
)