解释:题目long before the invention of radar很久很久之前发明的雷达【对应】tens of millions of years earlier数百万年前,sophisticated radar-likes ystem精致的类似雷达系统【对应】perfected the system完美的系统,要填主语,那么,答案natural selection自然选择 11、关键词inaccurate错误的term条款n.,because,not used...
Which invention was developed after the radio but before the television? A. The record player B. The cassette tape C. The VCR D. The CD player 相关知识点: 试题来源: 解析 A。在收音机之后、电视之前发明的是留声机。磁带、录像机、CD 播放器都在电视之后发明。
a每天练习口语 Every day practices the spoken language[translate] amore quickly 迅速[translate] a他似乎没有穿耳洞 He as if has not pierced the ears the hole[translate] aBefore the invention of paper books were made from pieces of wood or bamboo,so they were big and heavy In 105 A.D.,Ca...
a请输入您需要翻译的文本 Please input the text which you need to translate[translate] aas worrying, though is the passenger who can't hear the instructions to turn off hid radio because the music's too loud. 如担心,虽则是不能听见指示转动暗藏的收音机,因为音乐的太大声的乘客。[translate] ...
Why was the maser invented before the invention of the laser? Free Electron Maser: A free-electron maser is a device in which a stream of electrons is directed into a resonant cavity in which they oscillate. This causes a strong standing wave to be induced in the cavity. The electrons...
It is generally recognized, ___, that the introduction of the computer in the early 20th century, ___ by the invention of the integrated circuit during the 1960s, radically changed the process, ___ its impact on the media was not immediately ___. As time went by, computers became...
aIn line with this, Jeff Warren, a producer at CBC Radio’s The Current, tells us that the way we sleep has changed fundamentally since the invention of artificial(人造的) lighting and the electric bulb. 根据此,杰夫・沃伦,一个生产商在CBC收音机的潮流,告诉我们我们睡觉的方式从人为(人造的)...
a无线电波想四面八方传播 The radio wave wants to disseminate in all directions[translate] aSo that we inform PTSJ accordingly. So that we inform PTSJ accordingly.[translate] afor the worst-case response time of a given 为指定的最坏的响应时间[translate] ...
One of the biggest differences between now and before is the way we communicate. In the past, people relied on letters and face-to-face conversations to stay in touch with one another. Now, with the invention of smartphones and social media, communication has become instant and constant. We...
Journalism was made possible by the invention of the printing press. It rapidly spread throughout Europe during the 18th century and was eventually brought to America.Answer and Explanation: Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question...