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四、閱讀測驗【請依照段落上下文意,選出最適當的答案】
       Space X—the American technology company—launched 60 satellites into space in January 2020. Space X plans to create a network of 12,000 satellites. The company says that the network, known as Starlink, will help provide better Internet service to remote parts of the world. But astronomers say the growing number of satellites orbiting the Earth is making it harder for them to observe and learn from the universe.
        Satellites are made of metal that reflects sunlight. This makes them show up in the night sky as bright, slow-moving dots. After the launch, the Starlink satellites appeared in images taken by telescopes and deep-space cameras as a line of bright lights flying across the sky. Astronomers learn about space by using large telescopes and special cameras to observe light coming from very far away. The information they collect can help them understand things like how galaxies are formed or which planets might be able to support life.
        Some astronomers also use radio telescopes, which record radio waves coming from space. This makes it possible to study things that give off low energy and would not show up as light—like dust and gases. In April 2019, astronomers used information collected by several radio telescopes to produce the first image of a black hole. Large groups of satellites—known as “satellite constellations”—give off radio signals of their own and reflect radio waves coming from Earth. These extra signals interfere with radio waves coming from further away in the galaxy. While it might be possible to build satellites with surfaces that don’t reflect light, it will be very difficult to make satellites that don’t interfere with radio waves.

【題組】25. What can be inferred from the passage?
(A) Space X will probably stop its Starlink project in the near future.
(B) The light reflected from the satellites will interfere with internet connection on earth.
(C) Satellite constellations give off radio signals that will hurt people in remote places.
(D) There is currently no easy way to completely prevent the satellites from interfering with astronomical studies


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最佳解!
Yingchi Chen 幼兒園下 (2023/05/20)
最後一段可以得到總結衛星難不被輻射波影響...


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四、閱讀測驗【請依照段落上下文意,選出最適當的答案】       Space X..-阿摩線上測驗