Doctors have said that as many as 50% of_爱下问搜题

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问题选择题

Doctors have said that as many as 50% of the patients don’t take medicine as 　　　　.

A．being directed

B．to be directed

C．directed

D．directing

答案

答案：C

单项选择题

下列关于栈的描述中错误的是( )。

A．栈是先进先出的线性表

B．栈只能顺序存储

C．栈具有记忆作用

D．对栈的插入与删除操作中，不需要改变栈底指针

填空题

数据仓库中存放的数据是为了适应数据的【20】处理要求而集成起来的。