下列关于栈和队列的叙述中，正确的是( )。
Ⅰ.栈和队列都是线性表
Ⅱ.栈和队列都不能为空
Ⅲ.栈和队列都能应用于递归过程实现
Ⅳ.栈的操作原则是后进先出，而队列的操作原则是先进先出
Ⅴ.栈采用顺序方式存储，而队列采用链接方式存储
A
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