44. According to the article, in addition to Pluto the other known plutoid is _____.
(A) Uranus
(B) Mars
(C) Ceres
(D) Eris
(E) Venus
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統計: A(3), B(4), C(0), D(18), E(1) #2055846
統計: A(3), B(4), C(0), D(18), E(1) #2055846