Who invented the phones?A.BellB.Mr. GreenC.Mike.D.Bell’s father. 相关知识点: 试题来源: 解析 A 分析各选项: A. Bell——亚历山大·格拉汉姆·贝尔是公认的电话发明者,于1876年获得专利,符合史实。 B. Mr. Green——无历史记载与此相关的发明者。 C. Mike——常见英文名,但无证据表明其发明电话...
Do you remember a time when cell phones were rare? Today, it's hard to imagine a world without them. Even if you don't own one yourself, you probably see dozens of people talking on a cell phone every day. The rate at which we adopted the devices is astounding. But who invented th...
The first cellphone was invented more than fifty years ago. The man who 1 that phone, Martin Cooper, is now 96 years old.In the early 1970s, Cooper worked for an American technology company. At the time the company and other manufacturers were 2to create wireless phones that could work ...
One of the first ___【5】___(practice) telephones was invented by Alexander Graham Bell in1876. Since then, people have been able to speak to each other over long distances. Today ___【6】___(million) of people across the world own mobile phones. They allow people ___【7】___(k...
When was the first keyboard invented? When was the first computer invented? See the mouse definition for additional information about the computer mouse. Mouse and touchpad help and support.Was this page useful?YesNo Feedback E-mail Share PrintSearch...
A. They must be used to power mobile phones and calculators.B. They have some possible disadvantages like water leaking.C. They would be needed greatly at city water filtration sites.D. They would be better than wind and solar power. 2Scientists who discovered a new way of generating ...
Who invented the first factory? Who invented the first electric car? Who invented the modern combustion engine? What year were phones invented? Who invented the first automobile engine? Who were entrepreneurs in the Industrial Revolution? Who invented the steam engine that produced rotary motion?
It was made of some old everyday things.New Artwork An African artist Koffi made his artworks by using old phones. He took down the parts of old phones, painted them and made them into different artworks. Koffi helped people pay more attention to recycling.1. Who invented the pedal-...
Who invented the first cell phone? A World Before Cell Phones: There was a time before cell phones. Alexander Graham Bell patented the first telephone in 1875 and the first portable cellular phones came to be in 1972, so for many than 100 years, telephones were connected with wire, attached...
ainvented the zero. this was very important invention because it made it easier to write big numbers and to calculate 发明了零。 因为它使它更加容易写大数字和计算,这是非常重要发明[translate] a是一条真理 Is a truth[translate] athis is for you ren fan . 这是为您ren风扇。[translate] ...