第10题: [单项选择]The conductor told the old man that he didn't need to buy another ticket because___________.A. the old man was a famous personB. he thought the old man had no money with himC. he believed the old man 参考答案:C
第14题: [单项选择]Pentium微处理器进行存储器读操作时,在时钟周期T1期间,完成下列哪一项操作 A. W/R信号变为高电平 B. 发送存储器地址 C. 读操作码 D. 读操作数 参考答案:B 答案解析:Pentium微处理器主要的总线周期一存储器周期包括T1和T2两个时钟周期。T1期间,微处理器向数据/地址复用的总线上输出地址信息,以指示寻址的存储单元或I/O设备的端口地址;T2期间用来读/写总线上