Idempotence: merging a state with itself doesn’t change the state; A ∨ A = A. If Alice merges her own state with itself, the result will be the same state she started with.
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除了老爸，家人都明说了最坏打算：如果牛真要死，就死在沟里，不麻烦村里人来抬。毕竟，在这么陡的坡上抬一头近800斤的牛，搞不好把人命搭进去。，详情可参考体育直播
정청래 “‘대북송금’ 조작 검사들 감방 보내겠다…檢 날강도짓”
（四）怀孕或者哺乳自己不满一周岁婴儿的。