問題詳情
47.What percentage of galaxies are irregular?
(A)10%
(B)25%
(C)50%
(D)75%
(A)10%
(B)25%
(C)50%
(D)75%
參考答案
答案：A
難度：適中0.625
統計：A(5),B(0),C(1),D(1),E(0)
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