...They are called auroras(极光).Winter is a good time to see...
细节题。根据文章第一段 "But near Earth's poles(两极), green, red, and blue lights appear(出现)in the night sky and it makes the night sky sometimes colorful(多彩的). They are called auroras(极光). " 可知,有时地球的两极夜晚会五彩斑斓是因为有极光。故答案为C。 细...