本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IB物理学
[单选题]
The volume of the Earth is-ej7cy ;arg ib,l)7i j0rj8 .h7bzfwo vj2u4w;b: io.rdz -zr approximately $10^{12} \mathrm{~km}^3$ and the volume of a grain of sand is approximately $1 \mathrm{~mm}^3$. To the nearest order of magnitude, if the Earth was hollow, how many grains of sand could it contain?
A. $10^{12}$
B. $10^{18}$
C. $10^{24}$
D. $10^{30}$
参考答案: D
本题详细解析:
暂无
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