**问题6:** 文章第一段开头提出问题“How many planets are there in our galaxy?”,紧接着说“That's a tricky question to answer.”,可见这个问题并不好回答。 * A. “一个被认为是恶作剧的问题”与文意不符。 * C. “一个没有答案的问题”过于绝对。 * D. “一个容易处理的问题”与文意相反...
以"How many"开头的特殊疑问句基本结构如下: 1. How many countries are there in the world? 世界上有多少个国家? 2. How many continents are there on Earth? 地球上有多少个大洲? 3. How many oceans are there in the world? 世界上有多少个海洋? 4. How many planets are there in our solar ...
1. How many dimensions are there in space?1.空间中有多少个维度?2. What is the shape of the universe?2.宇宙的形状是怎样的?3. Where did the big bang start?3.大爆炸从何处开始?4. Why don't the orbits of planets decay and cause them to crash into each other?4.为什么行星的轨道不...
planets, dust and gas. We live on planet Earth, which is in one of the many solar systems located in a galaxy called theMilky Way. Just like our home galaxy, there are many other galaxies out there in the universe.
says that this took some trial and error, resulting in some loose guidelines for how many different types of creatures per planet based on a “calculated abundance.” This broke down to essentially one to three species on primordial planets, and up to ten or more on planets with abundant ...
Space The Milky Way: Understanding Our Place in the Galaxy Space Which Planets Are Considered 'Earth-like' and Why? Science Dictionary Just How Many Galaxies Are in the Universe? Space How is GPS used in spaceflight? Space 7 Facts About Arcturus, the Red Giant Star Space The Largest Star...
How many space rocks hit the moon every year? The space rocks that typically end up as meteorites are known as meteoroids — small asteroids, or the smallest members of the solar system. These range in size from boulders measuring about 3 feet (1 meter) wide down to micrometeoroids the...
In the huge universe, there is the Galaxy and many other galaxies. In the Galaxy, there is the Solar System and lots of other stars. In the Solar System, there is the sun, the earth and seven other planets. As we know, the eight planets go around their star —the sun. In our ...
He is well known for his demotion of Pluto to a dwarf planet. Tyson said not deleting Pluto as a “planet” would insult all the other planets in the solarsystem. The decision to reclassify Pluto was not meant to diminish its significance but rather to clarify the definition of what makes...
4.How many stars are there in the Milky Way?5.What does "Milky Way" mean in Chinese?第3个 e have light-years `` 答案 1.the sun together with its planets,travels in the Milky Way2.the earth seemed to be just a small bit of dust3.we have light-years.A light-year means the...