基本总线周期划分为T1、T2、T3和T4四个状态的CPU，当它执行一个_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

基本总线周期划分为T₁、T₂、T₃和T₄四个状态的CPU，当它执行一个正常的存储器读总线周期时，系统规定：读命令在T₂开始时产生，T₄开始时结束，则访问存储器地址信号的发生应在 ( )

A．T₄状态

B．T₃状态

C．T₂状态

D．T₁状态

答案

参考答案：D

解析：在T₁～T₂四个状态中，读命令开始在T₂状态，结束于T₄状态，则T₃状态是继续读，那么访问存储器地址信号是在T₁状态。

补全对话，情景问答

完成对话，把正确选项的字母代号写在横线上。

A. She has it at school.
B. Yes, she does.
C. No, I don't. I don't like eggs at all.
D. Yes, she likes it very much.
E. Yes, I like it very much.
F. She has hamburgers and chicken.
G. Yes, I like bananas.

A: Do you like eggs?
B: 1______
A: Do you like chicken?
B: 2______
A: Does your sister like apples?
B: 3______
A: What does she have for lunch?
B: 4______
A: Where does she have lunch?
B: 5______

名词解释

曼海姆乐派