题目What does "it" in paragraph2, sentence 3 refer to A.Earth.B.A planet.C.Sun.D.Any star.相关知识点: 试题来源: 解析 B [分析] 原句意思是:任何一个像太阳的恒星的附近会有一颗行星,他们之间的距离可以使这颗行星受到与地球等量的照射。
After all, Eris was not found until an advanced telescope discovered it. Rogue Planets A rogue planet is a planet that does not orbit a star, this might sound implausible, but they have been found to exist. How the planets came to be on their own is still to be decided. The only ...
So many strange worlds, with no sign of life. Not one other planet similar to our own.有那么多奇怪的世界，却没有生命的迹象。没有任何一个星球与我们的地球相似。So could it be that Earth really is unique? All living things on Earth are made of the same building blocks, long carbon-based...
If you're a fan of the best show on television, you're probably thinking, "Well, it could probably teach me how to walk, talk, and beat the frak out of my opponents." If, however, you're also a fan of the best mobile operating system on the planet, you might be thinking,...
Learn and get informed about the pollution of the oceans and its dangers. See how plastics, overfishing, climate change and ships affect the life and health of different ecosystems. We only have one planet — let's take care of it!
I would argue instead that there has never been a greater need to explore.That's because the stage for all exploration is the natural world,and nature is experiencing a rapid decline.It is by exploring that we understand and when we understand we develop an appreciation fo...
gathering in orbit of Earth to depart en masse for Mars every 26 months when the planet is closest. Each of them could supposedly carry 100 passengers. Even with the rapid pace of development at SpaceX's Boca Chica facility, that seems unlikely to happen any time soon, and it's not cer...
Much like the nurturing and creative powers it represents, the mystical moon has inspired awe for eons. And when the skies serve up a supermoon, we feel that connection more strongly, as the gravitational forces of this heavenly body come closer to those of our planet. ...
And while the spotlight shines bright on the best-known delegates, it’s the smaller interactions that can mean the most. “In Davos, I always like to meet the start-up or technology company that comes up with an idea that, if it works, could scale through the planet and change somethin...
In general, low-Earth orbit (LEO) satellites, which are relatively close to the surface of the planet, provide less latency than high-orbit satellites because the signals have less distance to travel. How Fast Is Satellite Internet? Satellite Internet Speeds Hughesnet Viasat Starlink Download Speed...