大一点的孩子、家庭主要语言非英语的孩子，及完成所有功课的孩子，不太可能成为欺凌者。
And older children and children who live in homes where their primary language is not English, and also children who complete all their homework, are less likely to be bullies.
分析了系统的非负不变性、边界平衡点性质及全局渐近稳定性。
Mathematical analyses of the model equations with regard to invariance of non-negativity, nature of equilibria and global stability are analyzed.
本文给出了满足弱内向型边界条件的非锥多值映象的正固有元及正不动点存在的一些充分条件。
This paper deals with the weakly inward non-cone multivalued map, gives somesufficiont conditions for this kind of map to have positive fixed points and eigenvectors.
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