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
17
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、Because the old one could not transfer signals clearly.
B、Because the old one could only send two messages along the same line simultaneously.
C、Because the old one could not send messages quickly enough.
D、Because the old one could not send more than one message at the same time.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3449809.html
相关试题推荐
SomeAmericansarealittlenervousaboutthenation’sfuture,butothersfe
SomeAmericansarealittlenervousaboutthenation’sfuture,butothersfe
InonlytwodecadesAsianAmericanshavebecomethefastest-growingU.S.min
InonlytwodecadesAsianAmericanshavebecomethefastest-growingU.S.min
InonlytwodecadesAsianAmericanshavebecomethefastest-growingU.S.min
Americansareproudoftheirvarietyandindividuality,yettheyloveandre
Americansareproudoftheirvarietyandindividuality,yettheyloveandre
[originaltext]OneofraymaingoalsinthissurveycourseofAmericanpaint
[originaltext]OneofraymaingoalsinthissurveycourseofAmericanpaint
[originaltext]OneofraymaingoalsinthissurveycourseofAmericanpaint
随机试题
不同地域、不同时代的情诗,有着多么差异的传统!男女相爱到处都是一样的,但不同的文化表达这种感情似乎各有各的特异方式。诗人也就曾用不同的方式去书写。古希腊
Ienjoyedmyselfsomuch______IvisitedmyfriendsinParislastyear.(2008年考试
[originaltext](32)Theworld’sfirstcompletelyautomaticrailwayhasbeen
消费者剩余最小的是()。A.全场一口价 B.买二送一,多买多送
关于声音的说法,错误的是:A.声音在障碍物表面会发生反射 B.声波会绕过障碍物
“滨江啤酒”是一家在中国东部沿海城市A市成功经营了十二年的啤酒厂,由于广大消费者
共用题干 抗菌药物的合理应用原则是严格掌握适应证,治疗方案应综合患者病情、病原
在弱式有效市场假设下,下列说法正确的有()。 A.证券价格反映了全部历史信息
适宜于敷设在室内要求移动柔软等场所的控制电缆是()。A.橡胶绝缘控制电缆
根据《水利建设工程施工分包管理规定》,水利工程施工分包按分包性质分为()。
最新回复
(
0
)