Galaxies are classified into different types according to their shape. Which of the following is a type of galaxy? A. Spiral galaxy B. Square galaxy C. Triangular galaxy D. Oval - shaped planet 相关知识点: 试题来源: 解析 A。解析:星系根据形状可分为不同类型,螺旋星系(Spiral galaxy)是其中...
Which of the following is a constellation? A. Nebula B. Star C. Leo D. Galaxy 相关知识点: 试题来源: 解析 C。本题考查星座的词汇。A 选项“Nebula”是星云;B 选项“Star”是星星;C 选项“Leo”是狮子座,属于星座;D 选项“Galaxy”是星系。
It can be inferred from the passage that which of the following is an accurate physical description of typical low-surface-brightness galaxies? 选项: A、They are large spiral galaxies containing fewer stars than do conventional galaxies. B、They are compact but very dim spiral galaxies. ...
A.(A) Our galaxy contains great interstellar dust clouds.B.(B) Near misses of bodies smaller than our own planet could be disastrous.C.(C) The probability of collision with a large astronomical body is very high.D.(D) The chances of anyone actually being hit by missiles are very high....
aNickel Plated Brass Ring Terminal 3mm & 4mm 镍被镀的中奖的机会终端3mm & 4mm [translate] aa subsidiary of 正在翻译,请等待... [translate] aa subsidiary 正在翻译,请等待... [translate] aWhich of the following is the best title? (George) 最佳的标题是哪些以下? (乔治) [translate] ...
In the science of astronomy, “galaxy” is a key term. Which of the following is a synonym? A. constellation B. nebula C. star system D. cosmos 相关知识点: 试题来源: 解析 C。解析:“galaxy”星系。“star system”恒星系,与星系概念最为接近;“constellation”星座,是天空中星星组成的图案;“...
A. The galaxy we live in is unique for its special spirals. B. The stars in the center of the Milky Way are more twisted. C. The distance from the sun to other stars is already known to scientists. D. The rotation of its inner center forces the Milky Way to twist. 相关知识点:...
颤动线 位于软腭与硬腭交界的部位，分前颤动线和后颤动线。前颤动线在硬腭与软腭连接区，后颤动线在软腭腱膜和软腭肌的连接区。前后颤动线之间称后堤区，平均宽度 8.2mm ，有一定弹性，所以上颌全口义齿组织面与此区相应的部位可适当加压，形成后堤，起边缘封闭作用 ...
ago find three more students to fill those seats 是发现入那些席的三名多学生[translate] aAccording to the first paragraph,which of the following.statements about the theory of evolution is true? 根据第一段, following.statements关于进化论是真实的?[translate]...
1. Which of the following is not a characteristic of the stars of the disk component of our galaxy?a. circular orbits,b. randomly inclined orbits,c. higher metal abundance d. young stars,2. The mass of a single galaxy might be found by a. the double galaxy method,b. ...