( ) Thomas Edison was the great who invented the first practical light bulb (灯泡).A. invent B. invention C. inventor D. inventors 相关知识点: 试题来源: 解析 托马斯·爱迪生是一位伟大的发明家,他发明了第一个使用的灯泡。A.发明,动词;B.发明,名词;C.发明家,名词;D.发明家,名词复数。此处指...
答案(1)who.考查定语从句.代指先行词Thomas Edison,做非限制性定语从句 invented the light bulb的主语,用关系词who,故填who.(2)Both.考查代词.代指Benjamin Franklin和Thomas Edison两个人,表示两者都,用Both.故填Both.(3)a.考查冠词.修饰名词 surprising number,表示"一个令人吃惊的数字...
The Menlo Park lab of Thomas Edison, who invented the lightbulb, is shown here after its relocation to the Henry Ford Museum in Greenfield Village, Dearborn, Michigan. The arrow on the vacuum pump (center) marks the site of Edison's recreation of the lighting of the incandescent bulb on ...
百度试题 结果1 题目Who figured out the light bulb burned out first? A. The man B. The woman. C. Nancy. 相关知识点: 试题来源: 解析 A 略 反馈 收藏
vacuum pump technology prevented Swan’s bulb from achieving practical longevity, and he abandoned his research. In 1865, however, German chemist Hermann Sprengel invented theSprengel Pump,which used falling mercury to achieve lower pressures than previously possible, spurring Swan to return to his exp...
Write the jobs. The first letter of each job has been given.I stay behind the camera and tell actors what to do. I’m a d___ . I find and write the news for newspapers or magazines. I’m a j___ . Like Edison, who created the light bulb, I
Why were the scientists extremely happy about their new discovery? A. They were the first to find a new way to produce electricity.B. They could make an electric current to light a light bulb.C. Their discovery could be used to invent water batteries.D. Their discovery was made 160 ...
, among others, all share a Standard Oil pedigree. These companies had the advantage of Standard Oil’s research and development and infrastructure, so they easily made the transition to gasoline producers when kerosene sales dropped as a result of Edison’s invention of the electric light bulb....
In 1962, Nick Holonyack, a consulting engineer for General Electric, invented the first visible light LED. It was a red LED and Holonyack had used gallium arsenide phosphide as a substrate for the diode. Holonyack has earned the honor of being called the "Father of the light-emitting diode...
Thomas Edison (fire) from his first two jobs for lack of competence. Later, as an inventor, he tried 1,000 times (create) the light bulb, without success. He was confident in (he), and (eventual) he did success. When (ask), “How did it feel to fail 1,000 times?” Edison ...