There have been many great inventions, things that changed the way we live. The first great invention was one that is still very important today-the wheel. This made it easier to carry heavy things and to travel long distances.For hundreds of years after that there were few inventions that...
There have been many great inventions, things that changed the way we live. The first great invention was one that is still very important today ——the wheel. This made i 1 easier to carry heavy things and to travel long distances. For h 2 of years after that there were few inventions...
However, if you decide to manufacture the invention and sell it yourself, you will need to continuously market your product. This can be a huge expense. If you don’t have much marketing experience, or aren’t particularly interested in learning, you might prefer to go the licensing route....
There have been many great inventions or things that changed the way we live. The first great invention was the one that is still very important today——the wheel. This made it easier to carry heavy things and to travel long distance.For hund
Well, today, I'd like to show you that through thinking differently, the problem has been solved. By the way, since I've been speaking, another 13,000 people around the world are suffering now with diarrhea. And four children have just died. I invented Lifesaver bottle because I got ang...
根据文中 There have been many great inventions, things that changed the way we live.”可知 有很多伟大的发明改变了我们的生活方式。所以选D。 【2】 C细节理解题 。根据文中 jet planes in 1930. This was also a time when a new material was first made. Nylon came in 1935.”可知 尼龙和...
New inventions will some day allow us to do things we have never yet dreamed of. 56. The passage talks mainly about ___. A. why cars were very important B. when light was invented C. how inventions affect people's lives D. which country made the first step into space 57. According ...
New inventions will some day allow us to do things we have never yet dreamed of. 根据材料内容选择最佳答案。 【1】 This passage talks mainly about ___. A. why cars were very important B. when light was invented C. which country made the first step into space D. how inventions effect...
根据文中Forhundredsofyearsafterthattherewerefewinventionsthathadasmucheffect(影响)asthewheel.”可知几百年之后,很少有发明跟车轮一样产生尽可能多的作用,所以选A。 【4】C词义猜测题。根据对Theworldisknowntomanbutthestarsarenotyet.Manbeganlookingforwaystogointospace.Russiamadethefirststep.ThentheUnitedStates...
5. A Chance Observation That Led to Velcro In the 1940s, Swiss engineer George de Mestral observed a simple yet intriguing phenomenon. After taking his dog for a walk in the countryside, he noticed that burs from the burdock plant were stubbornly clinging to his clothes and his dog...