微处理器中的所谓“寻址方式”是( )。
A．特指寻找指令码地址的方式
B．特指寻找微处理器内部寄存器地址的方式
C．特指寻找内存单元地址的方式
D．前面三种说法都不正确
参考答案：D
解析：操作数地址――指出该指令所操作(处理)的对象(称为操作数)所在的存储单元的地址。计算机中操作数可以相当灵活地指定，它可以直接包含在指令中，可以在CPU的某个寄存器中，一般情况是在存储器的某个(些)存储单元中。指定操作数所在位置的方法称为寻址方式。
| 阅读理解。 |
| What makes a house a home? Not size,of course.I've been in some of the grandest houses in America,and it's clear that no one lives there.Earlier this year,I had dinner in a mud hut in Ethiopia,where we sat on chairs next to the hostess' bed-a home that had more warmth than any house I've been in since. Now John Edwards is exploring what makes a house a home in his justreleased(发行)Home.The Blueprints of Our Lives.There Edwards writes,"This isn't a book about houses；it's a book about homes.About the values they rest on,the dreams they are filled with,and the people they have shaped ."Edwards writes,"The houses and circumstances are different,but much of what you find inside will be familiar." Whether you're sitting in an airport right now,waiting to fly to your childhood home for Thanksgiving, or in your own home waiting for the relatives to arrive,you know what he's talking about. We've lived in our townhouse for 21 years.It's home now.The loose windows that shake in the wind. The fireplace so shallow it holds only one log.The kitchen window that offers a view of the world passing by.It's where friends sit on the kitchen counter drinking wine while dinner is being fixed.I lived there for only 18 years,but it will always be my true home.Even the lamp in the west living room window,which I could see far down the road when driving home late at night,still shines. While all this talk about childhood memories can be warm and comforting,home is whom you're with, not where you are.As Edwards writes,"Home is family.Home is safety.Home is faith." Happy homecoming. |
| 1．According to the author,what makes a house a home? |
| A．All the belongings in the house. B．Feelings of warmth and comfort. C．The houses and circumstances. D．Drinking with friends on the kitchen counter. |
| 2．About the book Home: The Blueprints of Our Lives,we know that ________. |
| A．it was the description of Edwards' houses B．it is mainly about houses C．it helps us understand the concept(概念)of home D．it was written by the author of the text |
| 3．What did the author mean when he mentioned the loose windows and the shallow fireplace? |
| A．His house was too old to live in. B．He missed the feeling of home. C．He hated living there. D．He missed his old friends too much. |
| 4．It can be inferred according to the text that ________. |
| A．the author's family was very rich B．every happy home is the same C．the author has been living an unhappy life D．the author and Edwards hold similar ideas |