NASA has invented all sorts of technology to solve the peculiar problems of space exploration. In the 1950s and early 1960s, it created the revolutionary three-axis stabilization control design that enables satellites to point their antennas, instruments and solar panels with precision. Since then,...
NASA has invented all sorts of technology to solve the peculiar problems of space exploration. In the 1950s and early 1960s, it created the revolutionary three-axis stabilization control design that enables satellites to point their antennas, instruments and solar panels with precision. Since then,...
破了以前海洋探险的记录.故选 B . 4. C.推理判断题. A . Modern Technology 现代科技; B . Space Exploration 太空探险; C. Outstanding Figures .杰出人物; D . Fantastic Wildlife 神奇的野生动植物.根据整篇短文围绕 Fabien反馈 收藏
explorationsB. their life betterC. discoveriesD. a trip to space() 4. Nylon came out five years later thanA. radiosB.eamerasC.jet planesD. movies()5. People can live longer lives becausethat help cure diseases have worked very well.A. doctorsB. new waysC. medicinesD. new hospitals ...
案例一: Almost everyday we may see something in the newspaper or on about the latest exciting developments in space exploration. there is an immense pride in our science and technology and a sense of its importance for the welfare of mankind. not everyone , however, shares this feeling. ever...
solve that problem. New inventions can make exploration possible or easier. People wanted to explore space, Spacis different from Earth Space has no air. which means there is no oxygen and no air pressure. Space is also very cold. People would not be safe in...
New inventions will some day allow us to do things we have never yet dreamed of.( )1. In the 1800s, people began to work in order to make___.A. explorationsB. their life betterC. more inventionsD. a trip to space( )2. People can live longer lives because___that help get over...
in ancient Europe, people wrote on animal skins; while in ancient China, bones, tortoise shells, and bamboo strips were all used for writing, which were later proven unsuitable because of their bulk and weight. Hemp fiber and silk were also used to make paper, but the quality was far from...
The compass enabled mariners to navigate safely far from land, opening up the world for exploration and the subsequent development of global trade. An instrument still widely used today, the compass has transformed our knowledge and understanding of the Earth forever. 7. Light bulb An original ...
life.Of course new inventions continued to be made.But man now had a desire(渴望) to explore again.The earth was known to man but the stars were not.Man began looking for ways to go into space.Russia made the first step.Then the United States took a step.Since then other countries,...