The Northern lights are poetry, and they are nature’s light show. They are elementary particle physics, superstition, mythology and fairy tales.
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庐山位于江西省北部,北濒长江,东南临鄱阳湖。自然风光奇特秀丽,“匡庐奇秀甲天下山”。方圆302平方公里的风景区内,有16个大自然奇观,474处景点。171座山逶迤相连,峰峦叠嶂。
In the United States, what choices do the students have after high school?
What are the major criteria for university admission?
下列疾病属于自身免疫病,除了
A. 天疱疮
B. 类天疱疮
C. 白塞病
D. 红斑狼疮
E. 多形性红斑