题目内容
某计算机的控制器采用微程序控制方式，微指令的操作控制字段采用字段直接编码法，共有33个微指令，构成5个互斥类，分别包含7、3、12、5和6个微命令，则操作控制字段至少有。
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某计算机采用微程序控制器，共有32条指令，公共的取指令微程序包含两条微指令，各指令对应的微程序平均由4条微指令组成，采用断定法（下址字段法）确定下条微指令地址，则微指令中下址字段的位数至少是位。
假定不采用cache和指令预取技术，且计算机出于”开中断“状态，则下列有关指令执行的叙述中，错误的是。
某CPU的结构如下图所示，其中AC为累加器，条件状态寄存器保存指令执行过程中的状态。a、b、c、d为四个寄存器。图中的箭头表示信息传递的方向，试完成下列各题。
Choose the right word or phrase in the box to complete each of the following sentences. Choose the right word or phrase in the box to complete each of the following sentences.A. decentB. alarmingC. ritualD. amputationsE. treatableF. prediabetic G. appreciateH. complicationI. epidemicJ. pricked1. Millions of poor people die of ______ illnesses every year.2. He said it had once been a _______ community, but it had gone downhill in the last five years.3. A further 57 million people are considered to be in a ____ state.4. They failed to ______ the pressure he was under.5. Oliver took out a needle and ______ his index finger and squeezed a drop of blood onto an empty slide. fetus.6. Her visits to Joy became a _____.7. In the United Kingdom there are about 5,000 major _____ a year.8. In recent weeks an _____ of measles broke out.9. Such a policy will only worsen the already _____ housing situation.10. Hypertension is a common _____ of pregnancy that may have serious consequences to the mother and fetus.
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