The number of stars in a galaxy can be in the ___. A. hundreds B. thousands C. millions D. billions 相关知识点: 试题来源: 解析 D。解析:一个星系中的恒星数量可以在数十亿,选项 D 正确。选项 A、B、C 数量太少不符合实际情况。反馈 收藏 ...
百度试题 结果1 题目There are___ stars in the Galaxy. A. billion B. billion of C. billions of D. ten billions 相关知识点: 试题来源: 解析 C 反馈 收藏
in front, it has been calculated that there are 40,320 ways to rearrange the other eight reindeer.AUGUST is the month when most babies are born.THE average four-year-old asks more than 400 questions a day.ONE out of every three people can't snap their fingers.MAGAZINES are typically ...
upwards of 应该是超过的意思，这是一个复合句句只不过长了点 两个分句，以and隔开 意思是，在我们的星系中，超过十亿颗恒星已经耗费完了它们的能源（交换能量的资源），所以不能再产生恒星所需要的，对抗万有引力力的热量。（因为热胀冷缩，你懂？）这是在描述黑洞的成因 ...
Star formation outside the Elliptical Galaxy NGC2865 We have searched for young stellar complexes around the elliptical galaxy NGC2865. We find them in a ring of HI around the galaxy. Using the Multi-Slit Ima... F Urrutia-Viscarra,M Arnaboldi,CMD Oliveira,... - 《Revista Mexicana De Astro...
1 There are ___ stars in the Galaxy. We can’t count them. A. billion of B. billions C. billions of D. billion 2 There are stars in the Galaxy. They are far from us. A. billion of B. billions C. billions of D. billion 3There are stars in the Galaxy.We can't count ...
There are at least one hundred ___ stars in the Galaxy and its center looks brightest. A. billion B. billions of C. billion of D. billions 相关知识点: 试题来源: 解析 考察billion的用法。在银河系至少有一千亿颗星星并且它的中心看起来是最亮的。at least至少。billion十亿,billion与具体数字...
We measure a negligible dependence on cluster mass or galaxy mass. Therefore these formulae have general applicability in cosmological simulations, and are ideal to improve stellar stripping recipes in semi-analytical models, and/or to estimate the impact that tidal stripping would have on galaxies ...
a我可以给你一些具体的中文学习方法 I may give you some specific Chinese study method [translate] aThere are more than 200 billion stars in our galaxy,caiied the Milky Way,and our Sun is only one of them. 有超过200十亿个星在我们的星系, caiied银河,并且我们的太阳是仅他们中的一个。 [...
In a recent paper Endal found the rate of formation of neutron stars in the Galaxy to be about one every 4 years, which is substantially larger than the ma... JG Hills - 《Astrophysical Journal》 被引量: 19发表: 1978年 Modeling the Spatial Distribution of Neutron Stars in the Galaxy to...