Most XPath expressions, especially location paths, return node-sets.
多数 XPath 表达式，特别是位置路径，都返回节点集。
There are no more node-sets in XPath 2.0, just sequences of nodes.
XPath 2.0 中不再有节点集，只有节点序列。
It can also create sequences of atomic values, which might be confused with node-sets.
它也可以创建原子值序列，这有可能与结点集混淆。
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