单选题以于说法正确的是（）。A队列是后进先出B栈的特点是后进后出C栈的删除和插入操作都只能在栈顶进行D队列的删除和捶入操作都只能在队头进行
单选题
以于说法正确的是（）。
A
队列是后进先出
B
栈的特点是后进后出
C
栈的删除和插入操作都只能在栈顶进行
D
队列的删除和捶入操作都只能在队头进行
参考解析
解析：
暂无解析
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