Physics Unit33: Astrophysics and Cosmology (id: ff49a4f6e)

本题目来源于试卷: Physics Unit33: Astrophysics and Cosmology，类别为 国际高中通用物理

[单选题]
If a galaxy is moving away from us at 1tkvd25m 7.h. za cj;bn2)hsru.0% of the speed of lig:ub7n 4jjze j+juo2q; ht, how far away is it fn;:uoujejj2z4 b +q7jrom us?

A. 200 ly
B. 200 thousand ly
C. 200 million ly
D. 200 billion ly


参考答案:  C


本题详细解析: 暂无

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