从结合能实验值提取n p相互作用能εip -jn,系统比较了奇奇核单质子单中子相互作用能ε1p -1n与相邻奇A核相应量的平均值 ,发现前者普遍大于后者 .提出奇奇核n p增强的解释为 ,GMshift效应和同类核子对关联对奇A核n p相互作用的削弱效应 .同时指出 ,奇质子核的ε1p -2n相当好地近似等于同质量数奇中子核的ε2p -1n,并且这与Garvey Kelson关系是等价的 . The np interaction energy εip -jn was extracted from the experimental values ​​of the binding energy, and the average of the corresponding quantities of the singlet neutron interaction energy ε1p-1n and the adjacent odd A-nuclei was compared. The former is generally larger than the latter. It is proposed that the enhancement of odd nuclei np is explained by the weakened effect between the GMshift effect and the homonuclear pair association on the odd A nuclei np interaction. Meanwhile, it is pointed out that the odd proton nucleus ε1p -2n is fairly well equal to the same number of odd neutron nuclei ε2p -1n, and this is equivalent to Garvey Kelson’s relationship.