The invention of lights one of the greatest success made by

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• 一片英语科技短文的选择here have been many great inventions, things that changed the way we live in. The first great invention was one that is still very important today一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 had as much effect as the wheel. Then in the early 1800's the world started to change. There was little unknown land left in the world. People did not
• 阅读短文,在空白处写出各单词的正确形式,单词的第一个字母已给出(初二)There have been many great inventions that changed the way we live.The f____ great invention was one that is still very i____ today----wheel.This made it e____ to carry heavy things and to travel long distance.For hundreds of years after that there were f____ inventions that as important as the wheel.Then in the early 1800's the world started to c_____.There was l_____ unknown land left in the world.People didn't hav
• 英语翻译How do inventions affect people's life?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 hadas much effectas the wheel.Then in the early 1800's the world started to changed.There was little unknown and left in th
• 初一的题目（科学和英语）科学：小明用100牛的水平方向的力去推放在水平面的桌子,课桌在30秒内匀速移动了6米.已知课桌的质量为30千克.求：（1）课桌受到的摩擦力为多大?（2）小明推课桌的速度为多少?英语嘻……Thomas Edison was one of the greatest inventors in the world.Without his inventors,people may not have lights,films and many other things.But this very elever man had very little scholing.Edison began to make a talking machine in 1877.At first,he used paper to make a soud.He worked for months on this idea.At last he found out how to record a person
• The invention of the modern computer is one of the greatest contributions ___to man's efficiencyA.having ever been madeB.ever making C.ever made D.having ever made
• 以Comment on one greatest invention or discovery in 21century 为要求的 大学水平英语作文 300字
• 英语翻译It turns out that being voted “Most likely to succeed” in high school might actually be a good predictor of one’s financial and educational success later in life.According to a professor in University of Illinois who studies the sociology of education,high school sophomores who were rated by their teachers as having good social skills and work habits,and who participated in extracurricular activities in high school,made more money and completed hi
• 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 had as much effect(影响) as the wheel.Then in the early 1800’s the world started to change.There was little unknown land left in the world.People didn’t have to explore
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• 英语翻译There have been many comparisons made between London Underground and New York Subway.They are among the best-known transport systems in the world and each is a key part of one of the greatest cities of the world.The two systems are similar to each other,but there are also important differences between them.The following table sets out some of the similarities and differences.We believe that the information is all correct; but as information is not
• 如图所示，容器底部面积为100cm2，内装有250g 盐酸溶液．现往容器中投入一定量的碳酸钙固体，恰好与盐酸完全反应，容器底部所受压强增加28Pa．试计算： （1）投入碳酸钙的质量是多少g？
• 那个,如果用how 就不用a了吗?还有呀,周报上 是这样的,______ _____ ______ ______ Lin Miaoke is!