The Milky Way is a ___ of stars. A. group B. kind C. piece D. lot 相关知识点: 试题来源: 解析 A。“group”有“组,群”的意思,“a group of”表示“一群”,银河系是一群星星组成的。“kind”是“种类”,“piece”是“片,块”,“lot”通常与“a lot of”或“lots of”连用,表...
A. It has a supermassive black hole at its center. B. It is a spiral - shaped galaxy. C. All the stars in it are of the same age. D. It contains dust and gas clouds. 相关知识点: 试题来源: 解析 C。解析:银河系是一个巨大的星系,它的中心有一个超大质量黑洞,它是螺旋状星系,并且包...
was the first to realize that the Milky Way isn't motionless but rotates, and he calculated speeds at which stars at various distances orbit around the galactic center. It also was Oort who determined the position of our sun in the vast galaxy. (TheOort Cloud, a repository of trillions of...
Astronomers used to think that all of the stars in theuniversewere part of the Milky Way, but that changed in the 1920s when Edwin Hubble, the American astronomer after whom the famous telescope is named, managed to calculate the distance of the Andromeda nebula (today known as the Andromeda...
There ___ billions of stars in the Milky Way.A: isB: areC: wasD: were相关知识点: 试题来源: 解析 B 正确率: 78%, 易错项: A 翻译 银河系有数十亿颗星星。 本题主要考查 Be 动词。 结合句意,银河系有数十亿颗恒星。表示真理性的状态,用一般现在时。根据句中 billions of stars 可知,有数...
a跟你聊天累~~~不聊了! Chats tired ~~~ with you not to chat![translate] aThere are approximately 100 million stars in the Milky Way. Which expression represents this number of stars? 有大约100百万个星用银河。 哪个表示代表星的这个数字?[translate]...
The Milky Way Galaxy was one of two trillion galaxies believed to exist. The number of stars it contained was variously estimated to be over three billion to over four hundred billion stars. It generated its own magnetic field, which experienced dips and
Number of stars within 50 000 light years = 200 billion About the Map This map shows the full extent of the Milky Way galaxy - a spiral galaxy of at least two hundred billion stars. Our Sun is buried deep within the Orion Arm about 26 000 light years from the centre. Towards the ...
Milky Way Galaxy, are made of two populations of stars that are distinct in their physical properties as well as their locations. He applied the termPopulation Ito the stars thatconstitutethe spiral arms of Andromeda and to most of the stars that are visible in the Milky Way system in the ...
There billions of stars in the Milky Way.A. is B. are C. was D. were 相关知识点: 试题来源: 解析 B 考查主谓一致。There be句型中be动词遵循就近原则,空后名词stars为可数名词复数形式;又,句子陈述的是客观事实,需用一般现在时。故答案选B。