Who invented the clock, for example, or the lock to the door? We will know thousands of inventions and we should be grateful (感激的) to them if we learn them all. 相关知识点: 试题来源: 解析 这段文字提出了一个问题,即谁发明了时钟或者门锁,然后指出我们应该对这些发明者表示感激。这是因...
Researchers believe that the Egyptians created these big door locks because they wantedto protect:Their belongings; And places of religious significance. When was the deadbolt lock invented? The first deadbolt or “jimmy-proof lock” was invented in by Samuel Segal, a former cop who in1912founded...
. were popular first in the United States . were taken to England from America . were always popular in the United States . were popular again because of Duncan4. Teddy Roosevelt___. . was a president of the United States . invented teddy bears . was a cartoon editor . took photos of...
声明: 本网站大部分资源来源于用户创建编辑，上传，机构合作，自有兼职答题团队，如有侵犯了你的权益，请发送邮箱到feedback@deepthink.net.cn 本网站将在三个工作日内移除相关内容,刷刷题对内容所造成的任何后果不承担法律上的任何义务或责任
1. Who is the current president of the United States? 2. Who invented the telephone? 3. Who wrote the novel "Pride and Prejudice"? 4. Who was the first person to walk on the moon? 5. Who is the founder of Microsoft Corporation? 6. Who won the Best Actor award at the Academy Awa...
如“问题的答案”an answer to a question;“门的钥匙”a key to the door4.D由上文和句意可知答案为D。5.D由上文和语境可知当时达·芬奇不能造飞机故答案为D。6.B由上下文可知本句意为“但达·芬奇不仅仅是一名发明家”。故答案为B。7.C由语境和选项可知,只有even可以用在比较级前。8.A由语境可知...
Judson invented the first zipper in 1891. This ingenious little device looks very simple and the principle behind it is simple too; yet it took a lot of years together with another inventor to make the zipper really practical. The zipper had to be produced cheaply because no one would pay ...
Everyday science Who really invented the light bulb?Who really invented the light bulb? US inventor Thomas Edison often gets all the credit, but was he really the first to invent it, or did he just come up with a 'bright' idea?
Who invented the first calculator? Who influenced Pythagoras? Who invented beer? Who invented the steel plow? Who invented the steam engine that produced rotary motion? Who invented the door knob? Who was the first person to invent peanut butter?
Who invented the door knob?Question:Who invented the door knob?Doorknobs:Doorknobs may seem like a common, everyday item, but for thousands of years, people did not use them. Often, they used latch devices and slide bars to secure their doors. It was not until someone transformed the whe...