本题目来源于试卷: Physics Unit33: Astrophysics and Cosmology，类别为 通用国际物理
[单选题]
It can be shown that the approximate age of t-t2s4ay b0-dzv -3+bbd0 bx 5g fatmphhe universe is 1/H, where H is f(f nwss cr87 y8zsr6)w1r p0vthe Hubble constant. Taking H = 20 km/s/Mly, estimate the age of the univery 7c)s0prw znffrs8 16(w8vs rse, 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:
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