All over the world, people "talk" with their hands with their hands and with their eyes. When Japanese people meet, they bow. When Indians meet, they put their hands together. What do American and British people do?
Americans are more informal than the British. They like to be friendly. They use first names, they ask questions and they talk easily about themselves. When they sit down,
they like to relax in their chairs and make themselves comfortable.
British people are more reserved (保守的). They take more time to make friends. They like to know you before they ask you home.
When British and American people meet someone for the first time, they shake hands. They do not usually shake hands with people they know well. Women sometimes kiss their women friends, and men kiss women friends (on one cheek only). When a man meets a man friend, he just smiles, and says "Hello". Men do not kiss each other, or hold hands. Even fathers and sons do not often kiss each other.
In the first paragraph, the writer thinks that body language is ______.
A.useless
B.difficult
C.quite easy
D.important
第1题
当硬件中断装置发现有事件发生,就会中断正在占用cPU程序的执行,让操作系统的()占用cPU 。
A. 系统调用程序
B. 中断处理程序
c. 作业管理程序
D. 文件管理程序
第3题
在操作系统中,当一个中断(或事件)发生时,CPU的反应是()。
ACPU继续正在执行当前的程序,把中断事件交给外部设备处理。
BCPU继续正在执行当前的程序,待程序结束后再处理中断事件。
CCPU继续正在执行当前的程序,可以不理会中断事件的发生。
DCPU暂停正在执行的程序,自动转去处理中断事件。
第4题
第5题
通常,(26),硬件的中断装置检查有无中断事件发生若有中断事件发生,则暂停现行进程的执行,让操作系统的中断处理程序运行。
A.当处理器每运行规定时间时
B.当处理器每执行一条指令前
C.当处理器每执行完一条指令后
D.经过随机时间
第6题
(17)当系统发生某个事件时,CPU 暂停现行程序执行转去执行中断处理程序的过程称为
A)中断请求
B)中断响应
C)中断嵌套
D)中断屏蔽
第7题
A.一个中央处理器任何时刻最多只能被一个程序占用
B.只有被操作系统选中的程序才能占用处理器
C.若一个程序在执行中出现了事件,则该程序就要让出处理器
D.一个被中断的程序在等待中断事件结束后就可立即占用处理器
E.中断装置发现中断事件后就要让操作系统程序占用处理器
第8题
当系统发生某个事件时,CPU暂停现行程序的执行转去执行中断处理程序的过程称为
A.中断请求
B.中断响应
C.中断嵌套
D.中断屏蔽
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