Why did Leonardo da Vinci invent the parachute? Why was the lightbulb invented? Why was the computer invented? Why did Galileo Galilei invent the telescope? Why did Johann Gutenberg not become wealthy from his invention? Why was coal important to the Industrial Revolution?
Why was the internet invented? Why was the keyboard invented? Why was the internet originally created? Why was the automobile invented? Why was writing invented? Why did Alan Turing create the computer? Why was movable type invented? Why was the photograph invented?
they worked the same as a pianoC. they had the keys in alphabetical orderD. they were invented about 150 years ago)2.An example about a piano is given in Paragraph 4 to explainA. how a typewriter worksB. how to use a typewriterC. how to type on akeyboardD. how a typewriter was ...
The first typewriters had the keys in alphabetical order. There was a problem: If you pressed two keys quickly, the levers would easily jam. To reduce jams, people tried to rearrange (重新排列) the letters. American inventor Christopher Sholes invented the QWERTY keyboard. It turned out to be...
Look at your computer keyboard.B1. A. howB.whyHave you ever wondered 1 the lettersC. whenD. whereare not in alphabetical(字母的)order?A 2. A. slowB. differentTo answer this question, let's turn the clock back. AboutC.shyD. relaxing150 years ago, people wrote all letters and ...
The paper then moved a bit to the left. Press more keys and you could type a word or even a book. 3 There was a problem: If you pressed two keys quickly, the levers would easily stop together. 4 American inventor Christopher Sholes invented the QWERTY keyboard. It turned out to be ...
77. Were the first typewriters very large and heavy?78. What was the problem of the first typewriters?79. Who invented the QWERTY keyboard?80. What can we know from the last paragraph? 相关知识点: 试题来源: 解析 本文是一篇说明文。 文章主要对电脑键盘上的 字母为什么不按字母表顺序排列...
There was a problem: If you p_5_ two keys quickly, the levers would easily jam.To reduce jams, people tried to rearrange(重新排列) the letters. American inventor Christopher Sholes invented the QWERTY keyboard. It t_6_ out to be a great success.People around the world learned to use ...
根据“The first manual typewriter(手动打字机), with a keyboard which looked like a piano, was invented in the late 19th century. ”可知第一台手动打字机,键盘看起来像钢琴,结合下句“However, it was later discovered that as the typing speed increased, some keys failed to come back to their ...
To solve this problem, the QWERTY keyboard was developed. It placed keys in such a way that the most used letters were spaced out so that the keys were more likely to work freely.3.B With the arrival of the computer, the typists in offices were the same people who were to now ...