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What colors are commonly seen in the auroras?
问题详情
What colors are commonly seen in the auroras? Click on two answers.
A.Orange
B.Red
C.Green
D.Brown请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:BC
解析:Red and green are commonly seen in the auroras. The professor says An early twentieth- century explorer wrote about the "bloody red" and "ghostly green" lights; Most of the time they're greenish-yellow,but sometimes they take colors from violet to red. (2.2)