问题 单项选择题

在ARMLinux系统中,中断处理程序进入C代码以后,ARM的处于()工作模式

A、超级用户(SVC.

B、中断(IRQ)

C、快速中断(IRQ)

D、和进入中断之前的状态有关系

答案

参考答案:A

选择题
阅读理解

根据短文内容,判断下列句子的正“T”误“F”。

     Eating is important to everyone. But not many people have time to think about what to eat. "Fast food

is easy," says Sarah Hudson, a 14-year-old high school student from America. She is enjoying her lunch at

McDonald's. "It's quick and it is delicious." She eats fast food about twice a week.

     Now each American eats about three hamburgers and four bags of French fries every week. That is 2,520

calories (卡路里,热量单位). A person needs about 2,000 calaries for a whole day.

     Most Americans know that fast food isn't good for them. But it seems that they can't give it up. In fact,

more and more people are eating fast food, and fast food restaurants are part of American life. 96% of

American schoolchildren know McDonald's.

     Because they love French fries, it's no surprise that children are getting bigger. In America, 33% of

children are overweight (too heavy). That makes it hard for them to move around, go upstairs and even

breathe. So most of them probably have health problems later in life. Of course it's not just young people

who are getting heavier. It's all Americans.

( )1. Sarah is a 14-year-old high school student.                               

( )2. A person needs 2,520 calories a week.                                    

( )3. Most Americans still have fast food though they know it is bad for them. 

( )4. Half of the American children have difficulty in moving around.          

( )5. It's not good for one to have much fast food like French fries.