smarter, and alittle more fun.Super bananaAustralian biogeneticist(生物遗传学家) James Dale visited Uganda, a poor African country, inthe early 2000s. There
根据“Then in the early 1800s, the world started to change...People didn’t have to explore(探索) much any more.”可知,人们在19世纪初还没有探索世界。故选D。 (2)题详解: 细节理解题。根据“In the second half of the 19th century many great inventions were made. Among them were the ...
Hedy Lamarr was an Austrian American actress during MGM's "Golden Age" who also left her mark on technology. She helped develop an early technique for spread spectrum communications.
Data on the R&D and patents during the late 1900s and early 2000s across countries indicate larger business interests in renewable energy than in other energy sectors, in particular when combined with information and communication technologies into the distributed energy systems. However, predicting ...
1Electric cars may seem recent inventions, but actually,they have been around for years.In the early 1900s, there were more electric cars on theroad than gas-powered cars. At that time, gas was more ex-pensive compared with other fuels(燃料). Once gas pricesdropped and new technologies we...
In the early days of the 2nd century, a court official named Cai Lun produced a new kind of paper from bark, rags, wheat stalks and other materials. It was relatively cheap, light, thin, durable and more suitable for brush writing. At the beginning of the 3rd century, the paper ...
1.由文中“The Information about Some Great Inventions”可知答案。 2.由文中Appearing Time一行可知,Light bulb距今时间最近。 3.由文中Inventor's Nationality一行可知,只有Paper标注为Chinese。 4.由文中Telephone一栏中对应的Early Main Material为Plastic and metal。 【答案】 1.D;2.D;3.A;4.C.反馈...
Screws, on the other hand, were used for the first time in Ancient Greece around the 2nd century B.C.E. You may find it hard to believe, but until the early 1800s, most nails were made from hand-wrought iron, and blacksmiths had to hammer the iron and make an arrow-like shape. ...
1. History of ‘Jews’ INTRO TO THE JEWISH QUESTION | Exodus | Pharisees, Sadducees, Scribes | Kahal System | 'Diaspora' | Jews were early Christianity | Khazar Note | Khazar scholarship c 1910 | Thuggee compared with Judaism | Jewish Invention of 'Christianity' & Jewish invention of...
,' by Robert Gordon, which argues that the long-term improvements in productivity and living standards in the United States (U.S.) are incremental compared to the inventions of the late 19th and early 20th century.年份: 2001 收藏 引用 批量引用 报错 分享 ...