There are three types of security label components: array, set, and tree.

有三种类型的安全标签组件：数组、集合和树。

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An array is already a balanced B-tree, it is true?

一种阵列已经是一个平衡的二叉树，它是真的吗？

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An array is already a balanced B-tree, it is true?

一种阵列已经是一个平衡的二叉树，它是真的吗？

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