It has also opened up a new path for all humanity to realize modernization, and ensured that the efforts of building a global community of shared future are delivering real results. 为介绍共建“一带一路”10年来取得的成果,进一步增进国际社会的认识理解,推进共建“一带一路”高质量发展,让“一带一...
A. Only for communication. B. Only for navigation. C. For a variety of purposes, such as communication, navigation, and weather forecasting. D. Only for space tourism. 相关知识点: 试题来源: 解析 C。解析:文章提到“Satellites are used for a variety of purposes, such as communication, navig...
Another important function of satellites is to explore and map the Earth and other planets. Many satellites are equipped with cameras that capture still and video pictures of the surface of the planet. Infrared images, showing patterns of heat and cold, are also common. Scientists use satellite ...
B Have you ever heard of satellites(卫星)? What are they used for?Satellites are helping to forecast(预报) the weather now. They are in space, and they can reach any part of the world. The satellites take pictures of the atmosphere,where the weather forms. They send these pictures to ...
breaktherulesbyborrowingaccountsoftheirolderrelativesandfinda wayaroundfacial recognition.Inhisopinion,short-videoappssuchasDouyinandTikTokarealsoverypopularin China.Theyarenotunderthesamerestrictionsasgames. ( )5.Whencanchildrenplaygamesaccordingtothenewrules? A.Between8p.m.and9p.monFriday. B.Between8p.m...
3.【改编题】What are people and man-made satelitesspace for?A. sent intoB. sent upC. sent outD. sent away 答案 3.A 解析:send..into意为“把……送入……相关推荐 13.【改编题】What are people and man-made satellitesspace for?A. sent intoB.sent upC. sent outD. sent away 23.【...
Planet Earth is made up of four overlapping subsystems that contain all of world’s land masses, water sources, living organisms, and gases. These four subsystems are known as spheres. Geographers break down the Earth’s systems into four spheres that make up the world’s air (atmosphere),...
Communications satellites are placed in orbits so that they always remain above the same points of the earth's surface. a. What must be the period of such a satellite? b. What is its angular velocity Under what conditions a satellite appear stationary when viewed from the Earth?
Compared with 2.4 GHz frequency band, 5 GHz frequency band has fewer interference sources and more devices begin to use the 5 GHz frequency band, such as cordless phones, radars, wireless sensors, and digital satellites. In most cases, microwave ovens work at the freque...
As dangerous as the latter sounds, we're largely protected from its effects by Earth's geomagnetic field, as are the majority of satellites in orbit around the planet. As a consequence, solar radiation storms are only a really serious problem for deep space missions. Solar storm rankings NOAA...