阿摩線上測驗
21. How was the carly Sun compared to the modern Sun?
(D) Dark green
(A) Weaker
(B) Stronger
(C) Same
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統計： A(1), B(0), C(0), D(0), E(0) #3049939
統計： A(1), B(0), C(0), D(0), E(0) #3049939
