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]
What is the parallax(kng 39(o kx *bjv9 stetkuhg.8(-sii an3o9(pw j2hwqi7zy5q01bkcd9( b m y/8ec utmj gle for Proxima Centauri, which is Earth's nearest star at 4.b 703cmuedqw(pk9 12y h wq9m (cyjbjot/zi853 ly?
A. $1.2 \times 10^{-14} \; degrees$
B. $2.1 \times 10^{-4} \; degrees$
C. $1.2 \times 10^{-7} \; degrees$
D. $2.1 \times 10^{-7} \; degrees$
参考答案: B
本题详细解析:
暂无
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