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]
It can be shown that the a,2kttr5j2z2r0iqkw4 5b q.*g qx8 ouqv w- vohpproximatez 95:tcbuz+wsb(f-7 cykd a p9 age of the universe is 1/H, where H is the Hubble constant. Taking H = 20 km/s/Mly, estimate the age of 7b995+yfs z: -(czcaudkpbtw the universe, in years.
A. 15 thousand years
B. 15 million years
C. 15 billion years
D. 15 trillion years
参考答案: C
本题详细解析:
暂无
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