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 ak j9b 3k(umev4fk 74rdloh 7kidzq-:1 lo5j08lray)3 )cu6ehq( zpz rpproximately $10^{12} \mathrm{~km}^3$ 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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