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【单选题】
. 碱金属原子的能级与氢原子的相比较
A.
相同 n, 碱金属的能级略高，随着 n 和 值的增加，两者差别减少
B.
相同 n, 碱金属的能级略低，随着 n 和 值的增加，两者差别增加
C.
相同 n, 碱金属的能级略低，随着 n和 值的增加，两者差别减少
D.
在不考虑精细结构时，两者能级基本上重叠
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working for the interests of two political parties
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