问题
单项选择题
下列关于计算机系统工作原理的叙述中，哪一条是正确的
A．中央处理器直接对存储器中的数据进行处理
B．运算器完成解释和执行指令的工作
C．中央处理器可以从输入设备中得到控制指令
D．程序和数据均存放在存储器中
答案
参考答案：D
解析： 存储器是计算机记忆装置，它的主要功能是存放程序和数据。程序是计算机操作的依据，数据是计算机操作的对象。
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下列关于计算机系统工作原理的叙述中，哪一条是正确的
A．中央处理器直接对存储器中的数据进行处理
B．运算器完成解释和执行指令的工作
C．中央处理器可以从输入设备中得到控制指令
D．程序和数据均存放在存储器中
参考答案：D
解析： 存储器是计算机记忆装置，它的主要功能是存放程序和数据。程序是计算机操作的依据，数据是计算机操作的对象。
Miss Zhao is one of the most popular teachers in the school．Yesterday she came into the with a big smile on her face．She said to her that she was to see they did well in the sports meeting．But was not pleased to see the classroom last Saturday not as as usual．She hoped they would clean the classroom every day． Wei Hua was on yesterday．She said everyone was at except Lin Tao．Then she told Miss Zhao about their to the Great Wall last Sunday．Luckily the weather was ．They played games and had a picnic there．After Wei Hua her talk，Miss Zhao began her lesson．
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