问题 单项选择题

8086和Pentium 微处理器访问内存时,若需要插入等待周期,应分别在( )时钟周期后插入。

A.T1 后,T1 后

B.T3 后,T2 后

C.T3 后,T1 后

D.T1 后,T3 后

答案

参考答案:C

问答题

       某历史小组以“新中国外交历程”为主题进行研究,请你根据他们总结的关键词,用 简洁的语言叙述不同时期的外交成就各一项:(包括时间、事件、意义或地位)

(1)50年代——“求同存异”:

                                                                                                                                                             

                                                                                                                                                             

(2)70年代——“化敌为友”:

                                                                                                                                                              

(3)2l世纪初——上海一唐装:

                                                                                                                                                              

                                                                                                                                                              

单项选择题