阿摩線上測驗
46. What is one of the mysteries regarding Uranus?
(A) Its high temperatures.
(B) Its distance from the sun.
(C) Its unique color.
(D) Its magnetic field.
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統計： A(11), B(18), C(23), D(222), E(0) #2930156
統計： A(11), B(18), C(23), D(222), E(0) #2930156
