本题目来源于试卷: Physics Unit33: Astrophysics and Cosmology，类别为 Generic Physics
[单选题]
If a galaxy is moving ep gks7 f;( 2ws3: qwsadq:8elaho8b5/,d b vxbway from us at 1.0% of the speed of light, how far away is it f x8bh/5vdob,brom 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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Post time 2024-1-22 00:41:59