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假设我面临这样一种情况,即我既不能形成 octect 也不能形成 quad 也不能与元素配对,并且它仍然是单个的。我该怎么办?我应该忽略它吗?
像这样的孤立元素(只要它不代表“无关”变量)是基本质蕴涵项,因此必须包括在内