C关键词(句):camera:照相机翻译:照相机是什么时候被发明的?discover的含义是“发现”,及物动词,discovery的含义是“发现”,词性是名词;invent的含义是“发明”,词性是及物动词,invention的含义是“发明”,词性是名词;本题中应该用动词,因此B和D选项排除;A选项的含义与句子不符,本题中应该取“发明”之意,因此C...
The camera was invented in 1816 by Joseph Nicéphore Niépce. The 19th century refers to the years from 1801 to 1900. The first half of the 19th century is from 1801 to 1850. Therefore, the camera was invented in the first half of the 19th century....
The very first camera was the camera obscura, which humans discovered thousands of years ago. It is simply the phenomenon in which a darkened space with a tiny hole on one side will have the outside world projected into the space opposite the hole. There are documents that reveal some early...
When was the camera obscura invented?Camera Obscura:The camera obscura is a device where a tiny hole has been made in a box, and light refracts through the hole to project a mirror-image of the object being 'photographed.' Initially camera obscuras were large enough to sit inside, so ...
An IP camera allows remote monitoring and access from anywhere in the world using a computer or mobile device. The first IP camera was the Axis NetEye 200, which became commercially available in 1996. Another major change during this period was the advancements in video analytics, which allowed...
百度试题 结果1 题目【题目】 When was the camera invented? A. In 1839. B. In 1873. C. In 1927. 相关知识点: 试题来源: 解析 【解析】A 反馈 收藏
There are many great inventions in the world. Here is a short in- troduction about some of them. First, let's look at the camera. The camera was invented by Joseph Niepce in 1827. When it was inven- ted. it drew people's attention, because it's used for taking pictures. As for ...
When was the first color camera invented?Question:When was the first color camera invented?The Power of Pictures:In today's digital age pictures are very important to our way of life. They display our happiest and proudest moments, and now more than ever we are able to share them with as...
When was the film camera invented? William Kennedy Laurie Dickson, a Scottish inventor and employee of Thomas Edison, designed the Kinetograph Camera in1891. The camera was powered by an electric motor and was capable of shooting with the new sprocketed film. ...
When was it invented? It was invented in… Who was… invented by? It was invented by… What is it/are they used for? It is/ They are used for…来谈论发明的历史. Step12:教师寄语 There are many kinds of inventions in the world. They make our life better and better, easier and easi...