句子A：
He became the proud owner of a bed which had springs and a mattress.
这里的的 which 是指前面的一个单词，bed

句子B：
There are bits of wood and metal that lay around him.
这里的 that，指得是 bits of wood and metal

其实这么多年来一直有这个疑惑，就是 which that 之类的，指代前面的词，到底是哪个词？
有通用的语法规则吗？
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FROM 125.33.219.*

这个还真是。略微会产生歧义
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FROM 123.119.123.*