-Astronomy (id: 453e17ba6)

本题目来源于试卷: -Astronomy，类别为 美国物理杯赛(Physics Bowl)

[单选题]
17.13: According to currently accepteyby6o 7yu9:j yd theory, dark matter makes u8a;+airr9 r9*inju if p approximately what percent of t ii r*a9j+fai9 un;8rrhe Universe?

A. 5 %
B. 25 %
C. 50 %
D. 80 %
E. 99 %


参考答案:  B


本题详细解析: 暂无

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