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线性表是物理结构还是逻辑结构 

1. 物理结构只有顺序存储和随机存储两种。
2. 线性表是一种逻辑结构，现实存储一个线性表可以采用顺序存储和随机存储两种物理结构来实现。
3. 通常在顺序存储我们会用数组，随机存储我们会用链表。
4. 数组和链表是顺序存储和随机存储两种物理存储方式在具体编程语言上的表达方式。
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