阿摩線上測驗
48. Which of the following questions about auroras is answered in the passage?
(A) How many auroras normally occur in a year?
(B) How far does solar wind travel?
(C) How long could we see auroras?
(D) How could we see auroras in the United Kingdom?
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統計： A(24), B(108), C(271), D(37), E(0) #1806266
統計： A(24), B(108), C(271), D(37), E(0) #1806266
