How did Harlow Shapley determine that the center of the Galaxy is not near the Sun?单项选择题

A

By mapping the distribution of globular clusters in space

B

By observing the motion of nearby planets

C

By detecting X-ray emissions from the galactic center

D

By measuring the rotation speed of the Milky Way

登录即可查看完整答案

我们收录了全球超50000道真实原题与详细解析,现在登录,立即获得答案。

类似问题

更多留学生实用工具

加入我们,立即解锁 海量真题独家解析,让复习快人一步!