百度试题 结果1 题目How many satellites are ___ (orbit) the earth?相关知识点: 试题来源: 解析 orbiting 反馈 收藏
B 选项“By using engines”意为“通过使用引擎”,卫星在轨道上主要依靠地球引力,而不是引擎。C 选项“By the force of gravity”意为“通过地球引力”,这是卫星保持在轨道上的主要原因。D 选项“By the power of the sun”意为“通过太阳的力量”,太阳的力量不是卫星保持轨道的主要因素。
百度试题 结果1 题目6. How many satellites (satellite) have been put into orbit around the earth? 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
D. how the astronauts orbit the earth in a spacecraft(B)短文还原School finished at four o'clock. I went home with my brother. 76My mom told me not to go there because Sally's family had a dog. I was afraid of dogs because my cousin was once bitten () by a dog and he had to...
结果一 题目 用所给词的适当形式填空-How many ___(time)did he orbit the Earth?-Fourteen. 答案 timeshow many后接可数名词复数。相关推荐 1用所给词的适当形式填空-How many ___(time)did he orbit the Earth?-Fourteen. 反馈 收藏
1如:Fourteen times.(how many)→How many times did he orbit the Earth?last sunday.(when) go to beijing.thirteen minutes.(how long) it,lastin 1992.(when) be bornin a village of london.(where) be bornbecause he was ill.(why) not go to schoolhe is my good friend.(who) that beauti...
Of course, launching and operating satellites leads to problems. Today, with more than 1,000 operational satellites in orbit around Earth, our immediate cosmic neighborhood has become busier than a big city rush hour [source:Cain]. And then there's the discarded equipment, abandoned satellites, ...
Half of that 1071 are in Low-Earth Orbit, just a few hundred kilometers above the surface. Some of the most notable of these include the International Space Station, the Hubble Space Telescope, and many Earth observation satellites. Remove All Ads on Universe Today ...
Polar-orbiting satellites also pass over the planet's poles on each revolution, although their orbits are far less elliptical. The polar orbit remains fixed in space as Earth rotates inside the orbit. As a result, much of Earth passes under a satellite in a polar orbit. Because polar orbits...
百度试题 结果1 题目7. -How many _times_(time) did he orbit the Earth?Fifteen. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏